#1.load dataset 
data <- read.csv("https://raw.githubusercontent.com/datasciencedojo/datasets/master/titanic.csv")


#2A. pilih beberapa row
data_olah1 <- data[, c("Age", "SibSp", "Parch", "Fare")]
data_olah1
##       Age SibSp Parch     Fare
## 1   22.00     1     0   7.2500
## 2   38.00     1     0  71.2833
## 3   26.00     0     0   7.9250
## 4   35.00     1     0  53.1000
## 5   35.00     0     0   8.0500
## 6      NA     0     0   8.4583
## 7   54.00     0     0  51.8625
## 8    2.00     3     1  21.0750
## 9   27.00     0     2  11.1333
## 10  14.00     1     0  30.0708
## 11   4.00     1     1  16.7000
## 12  58.00     0     0  26.5500
## 13  20.00     0     0   8.0500
## 14  39.00     1     5  31.2750
## 15  14.00     0     0   7.8542
## 16  55.00     0     0  16.0000
## 17   2.00     4     1  29.1250
## 18     NA     0     0  13.0000
## 19  31.00     1     0  18.0000
## 20     NA     0     0   7.2250
## 21  35.00     0     0  26.0000
## 22  34.00     0     0  13.0000
## 23  15.00     0     0   8.0292
## 24  28.00     0     0  35.5000
## 25   8.00     3     1  21.0750
## 26  38.00     1     5  31.3875
## 27     NA     0     0   7.2250
## 28  19.00     3     2 263.0000
## 29     NA     0     0   7.8792
## 30     NA     0     0   7.8958
## 31  40.00     0     0  27.7208
## 32     NA     1     0 146.5208
## 33     NA     0     0   7.7500
## 34  66.00     0     0  10.5000
## 35  28.00     1     0  82.1708
## 36  42.00     1     0  52.0000
## 37     NA     0     0   7.2292
## 38  21.00     0     0   8.0500
## 39  18.00     2     0  18.0000
## 40  14.00     1     0  11.2417
## 41  40.00     1     0   9.4750
## 42  27.00     1     0  21.0000
## 43     NA     0     0   7.8958
## 44   3.00     1     2  41.5792
## 45  19.00     0     0   7.8792
## 46     NA     0     0   8.0500
## 47     NA     1     0  15.5000
## 48     NA     0     0   7.7500
## 49     NA     2     0  21.6792
## 50  18.00     1     0  17.8000
## 51   7.00     4     1  39.6875
## 52  21.00     0     0   7.8000
## 53  49.00     1     0  76.7292
## 54  29.00     1     0  26.0000
## 55  65.00     0     1  61.9792
## 56     NA     0     0  35.5000
## 57  21.00     0     0  10.5000
## 58  28.50     0     0   7.2292
## 59   5.00     1     2  27.7500
## 60  11.00     5     2  46.9000
## 61  22.00     0     0   7.2292
## 62  38.00     0     0  80.0000
## 63  45.00     1     0  83.4750
## 64   4.00     3     2  27.9000
## 65     NA     0     0  27.7208
## 66     NA     1     1  15.2458
## 67  29.00     0     0  10.5000
## 68  19.00     0     0   8.1583
## 69  17.00     4     2   7.9250
## 70  26.00     2     0   8.6625
## 71  32.00     0     0  10.5000
## 72  16.00     5     2  46.9000
## 73  21.00     0     0  73.5000
## 74  26.00     1     0  14.4542
## 75  32.00     0     0  56.4958
## 76  25.00     0     0   7.6500
## 77     NA     0     0   7.8958
## 78     NA     0     0   8.0500
## 79   0.83     0     2  29.0000
## 80  30.00     0     0  12.4750
## 81  22.00     0     0   9.0000
## 82  29.00     0     0   9.5000
## 83     NA     0     0   7.7875
## 84  28.00     0     0  47.1000
## 85  17.00     0     0  10.5000
## 86  33.00     3     0  15.8500
## 87  16.00     1     3  34.3750
## 88     NA     0     0   8.0500
## 89  23.00     3     2 263.0000
## 90  24.00     0     0   8.0500
## 91  29.00     0     0   8.0500
## 92  20.00     0     0   7.8542
## 93  46.00     1     0  61.1750
## 94  26.00     1     2  20.5750
## 95  59.00     0     0   7.2500
## 96     NA     0     0   8.0500
## 97  71.00     0     0  34.6542
## 98  23.00     0     1  63.3583
## 99  34.00     0     1  23.0000
## 100 34.00     1     0  26.0000
## 101 28.00     0     0   7.8958
## 102    NA     0     0   7.8958
## 103 21.00     0     1  77.2875
## 104 33.00     0     0   8.6542
## 105 37.00     2     0   7.9250
## 106 28.00     0     0   7.8958
## 107 21.00     0     0   7.6500
## 108    NA     0     0   7.7750
## 109 38.00     0     0   7.8958
## 110    NA     1     0  24.1500
## 111 47.00     0     0  52.0000
## 112 14.50     1     0  14.4542
## 113 22.00     0     0   8.0500
## 114 20.00     1     0   9.8250
## 115 17.00     0     0  14.4583
## 116 21.00     0     0   7.9250
## 117 70.50     0     0   7.7500
## 118 29.00     1     0  21.0000
## 119 24.00     0     1 247.5208
## 120  2.00     4     2  31.2750
## 121 21.00     2     0  73.5000
## 122    NA     0     0   8.0500
## 123 32.50     1     0  30.0708
## 124 32.50     0     0  13.0000
## 125 54.00     0     1  77.2875
## 126 12.00     1     0  11.2417
## 127    NA     0     0   7.7500
## 128 24.00     0     0   7.1417
## 129    NA     1     1  22.3583
## 130 45.00     0     0   6.9750
## 131 33.00     0     0   7.8958
## 132 20.00     0     0   7.0500
## 133 47.00     1     0  14.5000
## 134 29.00     1     0  26.0000
## 135 25.00     0     0  13.0000
## 136 23.00     0     0  15.0458
## 137 19.00     0     2  26.2833
## 138 37.00     1     0  53.1000
## 139 16.00     0     0   9.2167
## 140 24.00     0     0  79.2000
## 141    NA     0     2  15.2458
## 142 22.00     0     0   7.7500
## 143 24.00     1     0  15.8500
## 144 19.00     0     0   6.7500
## 145 18.00     0     0  11.5000
## 146 19.00     1     1  36.7500
## 147 27.00     0     0   7.7958
## 148  9.00     2     2  34.3750
## 149 36.50     0     2  26.0000
## 150 42.00     0     0  13.0000
## 151 51.00     0     0  12.5250
## 152 22.00     1     0  66.6000
## 153 55.50     0     0   8.0500
## 154 40.50     0     2  14.5000
## 155    NA     0     0   7.3125
## 156 51.00     0     1  61.3792
## 157 16.00     0     0   7.7333
## 158 30.00     0     0   8.0500
## 159    NA     0     0   8.6625
## 160    NA     8     2  69.5500
## 161 44.00     0     1  16.1000
## 162 40.00     0     0  15.7500
## 163 26.00     0     0   7.7750
## 164 17.00     0     0   8.6625
## 165  1.00     4     1  39.6875
## 166  9.00     0     2  20.5250
## 167    NA     0     1  55.0000
## 168 45.00     1     4  27.9000
## 169    NA     0     0  25.9250
## 170 28.00     0     0  56.4958
## 171 61.00     0     0  33.5000
## 172  4.00     4     1  29.1250
## 173  1.00     1     1  11.1333
## 174 21.00     0     0   7.9250
## 175 56.00     0     0  30.6958
## 176 18.00     1     1   7.8542
## 177    NA     3     1  25.4667
## 178 50.00     0     0  28.7125
## 179 30.00     0     0  13.0000
## 180 36.00     0     0   0.0000
## 181    NA     8     2  69.5500
## 182    NA     0     0  15.0500
## 183  9.00     4     2  31.3875
## 184  1.00     2     1  39.0000
## 185  4.00     0     2  22.0250
## 186    NA     0     0  50.0000
## 187    NA     1     0  15.5000
## 188 45.00     0     0  26.5500
## 189 40.00     1     1  15.5000
## 190 36.00     0     0   7.8958
## 191 32.00     0     0  13.0000
## 192 19.00     0     0  13.0000
## 193 19.00     1     0   7.8542
## 194  3.00     1     1  26.0000
## 195 44.00     0     0  27.7208
## 196 58.00     0     0 146.5208
## 197    NA     0     0   7.7500
## 198 42.00     0     1   8.4042
## 199    NA     0     0   7.7500
## 200 24.00     0     0  13.0000
## 201 28.00     0     0   9.5000
## 202    NA     8     2  69.5500
## 203 34.00     0     0   6.4958
## 204 45.50     0     0   7.2250
## 205 18.00     0     0   8.0500
## 206  2.00     0     1  10.4625
## 207 32.00     1     0  15.8500
## 208 26.00     0     0  18.7875
## 209 16.00     0     0   7.7500
## 210 40.00     0     0  31.0000
## 211 24.00     0     0   7.0500
## 212 35.00     0     0  21.0000
## 213 22.00     0     0   7.2500
## 214 30.00     0     0  13.0000
## 215    NA     1     0   7.7500
## 216 31.00     1     0 113.2750
## 217 27.00     0     0   7.9250
## 218 42.00     1     0  27.0000
## 219 32.00     0     0  76.2917
## 220 30.00     0     0  10.5000
## 221 16.00     0     0   8.0500
## 222 27.00     0     0  13.0000
## 223 51.00     0     0   8.0500
## 224    NA     0     0   7.8958
## 225 38.00     1     0  90.0000
## 226 22.00     0     0   9.3500
## 227 19.00     0     0  10.5000
## 228 20.50     0     0   7.2500
## 229 18.00     0     0  13.0000
## 230    NA     3     1  25.4667
## 231 35.00     1     0  83.4750
## 232 29.00     0     0   7.7750
## 233 59.00     0     0  13.5000
## 234  5.00     4     2  31.3875
## 235 24.00     0     0  10.5000
## 236    NA     0     0   7.5500
## 237 44.00     1     0  26.0000
## 238  8.00     0     2  26.2500
## 239 19.00     0     0  10.5000
## 240 33.00     0     0  12.2750
## 241    NA     1     0  14.4542
## 242    NA     1     0  15.5000
## 243 29.00     0     0  10.5000
## 244 22.00     0     0   7.1250
## 245 30.00     0     0   7.2250
## 246 44.00     2     0  90.0000
## 247 25.00     0     0   7.7750
## 248 24.00     0     2  14.5000
## 249 37.00     1     1  52.5542
## 250 54.00     1     0  26.0000
## 251    NA     0     0   7.2500
## 252 29.00     1     1  10.4625
## 253 62.00     0     0  26.5500
## 254 30.00     1     0  16.1000
## 255 41.00     0     2  20.2125
## 256 29.00     0     2  15.2458
## 257    NA     0     0  79.2000
## 258 30.00     0     0  86.5000
## 259 35.00     0     0 512.3292
## 260 50.00     0     1  26.0000
## 261    NA     0     0   7.7500
## 262  3.00     4     2  31.3875
## 263 52.00     1     1  79.6500
## 264 40.00     0     0   0.0000
## 265    NA     0     0   7.7500
## 266 36.00     0     0  10.5000
## 267 16.00     4     1  39.6875
## 268 25.00     1     0   7.7750
## 269 58.00     0     1 153.4625
## 270 35.00     0     0 135.6333
## 271    NA     0     0  31.0000
## 272 25.00     0     0   0.0000
## 273 41.00     0     1  19.5000
## 274 37.00     0     1  29.7000
## 275    NA     0     0   7.7500
## 276 63.00     1     0  77.9583
## 277 45.00     0     0   7.7500
## 278    NA     0     0   0.0000
## 279  7.00     4     1  29.1250
## 280 35.00     1     1  20.2500
## 281 65.00     0     0   7.7500
## 282 28.00     0     0   7.8542
## 283 16.00     0     0   9.5000
## 284 19.00     0     0   8.0500
## 285    NA     0     0  26.0000
## 286 33.00     0     0   8.6625
## 287 30.00     0     0   9.5000
## 288 22.00     0     0   7.8958
## 289 42.00     0     0  13.0000
## 290 22.00     0     0   7.7500
## 291 26.00     0     0  78.8500
## 292 19.00     1     0  91.0792
## 293 36.00     0     0  12.8750
## 294 24.00     0     0   8.8500
## 295 24.00     0     0   7.8958
## 296    NA     0     0  27.7208
## 297 23.50     0     0   7.2292
## 298  2.00     1     2 151.5500
## 299    NA     0     0  30.5000
## 300 50.00     0     1 247.5208
## 301    NA     0     0   7.7500
## 302    NA     2     0  23.2500
## 303 19.00     0     0   0.0000
## 304    NA     0     0  12.3500
## 305    NA     0     0   8.0500
## 306  0.92     1     2 151.5500
## 307    NA     0     0 110.8833
## 308 17.00     1     0 108.9000
## 309 30.00     1     0  24.0000
## 310 30.00     0     0  56.9292
## 311 24.00     0     0  83.1583
## 312 18.00     2     2 262.3750
## 313 26.00     1     1  26.0000
## 314 28.00     0     0   7.8958
## 315 43.00     1     1  26.2500
## 316 26.00     0     0   7.8542
## 317 24.00     1     0  26.0000
## 318 54.00     0     0  14.0000
## 319 31.00     0     2 164.8667
## 320 40.00     1     1 134.5000
## 321 22.00     0     0   7.2500
## 322 27.00     0     0   7.8958
## 323 30.00     0     0  12.3500
## 324 22.00     1     1  29.0000
## 325    NA     8     2  69.5500
## 326 36.00     0     0 135.6333
## 327 61.00     0     0   6.2375
## 328 36.00     0     0  13.0000
## 329 31.00     1     1  20.5250
## 330 16.00     0     1  57.9792
## 331    NA     2     0  23.2500
## 332 45.50     0     0  28.5000
## 333 38.00     0     1 153.4625
## 334 16.00     2     0  18.0000
## 335    NA     1     0 133.6500
## 336    NA     0     0   7.8958
## 337 29.00     1     0  66.6000
## 338 41.00     0     0 134.5000
## 339 45.00     0     0   8.0500
## 340 45.00     0     0  35.5000
## 341  2.00     1     1  26.0000
## 342 24.00     3     2 263.0000
## 343 28.00     0     0  13.0000
## 344 25.00     0     0  13.0000
## 345 36.00     0     0  13.0000
## 346 24.00     0     0  13.0000
## 347 40.00     0     0  13.0000
## 348    NA     1     0  16.1000
## 349  3.00     1     1  15.9000
## 350 42.00     0     0   8.6625
## 351 23.00     0     0   9.2250
## 352    NA     0     0  35.0000
## 353 15.00     1     1   7.2292
## 354 25.00     1     0  17.8000
## 355    NA     0     0   7.2250
## 356 28.00     0     0   9.5000
## 357 22.00     0     1  55.0000
## 358 38.00     0     0  13.0000
## 359    NA     0     0   7.8792
## 360    NA     0     0   7.8792
## 361 40.00     1     4  27.9000
## 362 29.00     1     0  27.7208
## 363 45.00     0     1  14.4542
## 364 35.00     0     0   7.0500
## 365    NA     1     0  15.5000
## 366 30.00     0     0   7.2500
## 367 60.00     1     0  75.2500
## 368    NA     0     0   7.2292
## 369    NA     0     0   7.7500
## 370 24.00     0     0  69.3000
## 371 25.00     1     0  55.4417
## 372 18.00     1     0   6.4958
## 373 19.00     0     0   8.0500
## 374 22.00     0     0 135.6333
## 375  3.00     3     1  21.0750
## 376    NA     1     0  82.1708
## 377 22.00     0     0   7.2500
## 378 27.00     0     2 211.5000
## 379 20.00     0     0   4.0125
## 380 19.00     0     0   7.7750
## 381 42.00     0     0 227.5250
## 382  1.00     0     2  15.7417
## 383 32.00     0     0   7.9250
## 384 35.00     1     0  52.0000
## 385    NA     0     0   7.8958
## 386 18.00     0     0  73.5000
## 387  1.00     5     2  46.9000
## 388 36.00     0     0  13.0000
## 389    NA     0     0   7.7292
## 390 17.00     0     0  12.0000
## 391 36.00     1     2 120.0000
## 392 21.00     0     0   7.7958
## 393 28.00     2     0   7.9250
## 394 23.00     1     0 113.2750
## 395 24.00     0     2  16.7000
## 396 22.00     0     0   7.7958
## 397 31.00     0     0   7.8542
## 398 46.00     0     0  26.0000
## 399 23.00     0     0  10.5000
## 400 28.00     0     0  12.6500
## 401 39.00     0     0   7.9250
## 402 26.00     0     0   8.0500
## 403 21.00     1     0   9.8250
## 404 28.00     1     0  15.8500
## 405 20.00     0     0   8.6625
## 406 34.00     1     0  21.0000
## 407 51.00     0     0   7.7500
## 408  3.00     1     1  18.7500
## 409 21.00     0     0   7.7750
## 410    NA     3     1  25.4667
## 411    NA     0     0   7.8958
## 412    NA     0     0   6.8583
## 413 33.00     1     0  90.0000
## 414    NA     0     0   0.0000
## 415 44.00     0     0   7.9250
## 416    NA     0     0   8.0500
## 417 34.00     1     1  32.5000
## 418 18.00     0     2  13.0000
## 419 30.00     0     0  13.0000
## 420 10.00     0     2  24.1500
## 421    NA     0     0   7.8958
## 422 21.00     0     0   7.7333
## 423 29.00     0     0   7.8750
## 424 28.00     1     1  14.4000
## 425 18.00     1     1  20.2125
## 426    NA     0     0   7.2500
## 427 28.00     1     0  26.0000
## 428 19.00     0     0  26.0000
## 429    NA     0     0   7.7500
## 430 32.00     0     0   8.0500
## 431 28.00     0     0  26.5500
## 432    NA     1     0  16.1000
## 433 42.00     1     0  26.0000
## 434 17.00     0     0   7.1250
## 435 50.00     1     0  55.9000
## 436 14.00     1     2 120.0000
## 437 21.00     2     2  34.3750
## 438 24.00     2     3  18.7500
## 439 64.00     1     4 263.0000
## 440 31.00     0     0  10.5000
## 441 45.00     1     1  26.2500
## 442 20.00     0     0   9.5000
## 443 25.00     1     0   7.7750
## 444 28.00     0     0  13.0000
## 445    NA     0     0   8.1125
## 446  4.00     0     2  81.8583
## 447 13.00     0     1  19.5000
## 448 34.00     0     0  26.5500
## 449  5.00     2     1  19.2583
## 450 52.00     0     0  30.5000
## 451 36.00     1     2  27.7500
## 452    NA     1     0  19.9667
## 453 30.00     0     0  27.7500
## 454 49.00     1     0  89.1042
## 455    NA     0     0   8.0500
## 456 29.00     0     0   7.8958
## 457 65.00     0     0  26.5500
## 458    NA     1     0  51.8625
## 459 50.00     0     0  10.5000
## 460    NA     0     0   7.7500
## 461 48.00     0     0  26.5500
## 462 34.00     0     0   8.0500
## 463 47.00     0     0  38.5000
## 464 48.00     0     0  13.0000
## 465    NA     0     0   8.0500
## 466 38.00     0     0   7.0500
## 467    NA     0     0   0.0000
## 468 56.00     0     0  26.5500
## 469    NA     0     0   7.7250
## 470  0.75     2     1  19.2583
## 471    NA     0     0   7.2500
## 472 38.00     0     0   8.6625
## 473 33.00     1     2  27.7500
## 474 23.00     0     0  13.7917
## 475 22.00     0     0   9.8375
## 476    NA     0     0  52.0000
## 477 34.00     1     0  21.0000
## 478 29.00     1     0   7.0458
## 479 22.00     0     0   7.5208
## 480  2.00     0     1  12.2875
## 481  9.00     5     2  46.9000
## 482    NA     0     0   0.0000
## 483 50.00     0     0   8.0500
## 484 63.00     0     0   9.5875
## 485 25.00     1     0  91.0792
## 486    NA     3     1  25.4667
## 487 35.00     1     0  90.0000
## 488 58.00     0     0  29.7000
## 489 30.00     0     0   8.0500
## 490  9.00     1     1  15.9000
## 491    NA     1     0  19.9667
## 492 21.00     0     0   7.2500
## 493 55.00     0     0  30.5000
## 494 71.00     0     0  49.5042
## 495 21.00     0     0   8.0500
## 496    NA     0     0  14.4583
## 497 54.00     1     0  78.2667
## 498    NA     0     0  15.1000
## 499 25.00     1     2 151.5500
## 500 24.00     0     0   7.7958
## 501 17.00     0     0   8.6625
## 502 21.00     0     0   7.7500
## 503    NA     0     0   7.6292
## 504 37.00     0     0   9.5875
## 505 16.00     0     0  86.5000
## 506 18.00     1     0 108.9000
## 507 33.00     0     2  26.0000
## 508    NA     0     0  26.5500
## 509 28.00     0     0  22.5250
## 510 26.00     0     0  56.4958
## 511 29.00     0     0   7.7500
## 512    NA     0     0   8.0500
## 513 36.00     0     0  26.2875
## 514 54.00     1     0  59.4000
## 515 24.00     0     0   7.4958
## 516 47.00     0     0  34.0208
## 517 34.00     0     0  10.5000
## 518    NA     0     0  24.1500
## 519 36.00     1     0  26.0000
## 520 32.00     0     0   7.8958
## 521 30.00     0     0  93.5000
## 522 22.00     0     0   7.8958
## 523    NA     0     0   7.2250
## 524 44.00     0     1  57.9792
## 525    NA     0     0   7.2292
## 526 40.50     0     0   7.7500
## 527 50.00     0     0  10.5000
## 528    NA     0     0 221.7792
## 529 39.00     0     0   7.9250
## 530 23.00     2     1  11.5000
## 531  2.00     1     1  26.0000
## 532    NA     0     0   7.2292
## 533 17.00     1     1   7.2292
## 534    NA     0     2  22.3583
## 535 30.00     0     0   8.6625
## 536  7.00     0     2  26.2500
## 537 45.00     0     0  26.5500
## 538 30.00     0     0 106.4250
## 539    NA     0     0  14.5000
## 540 22.00     0     2  49.5000
## 541 36.00     0     2  71.0000
## 542  9.00     4     2  31.2750
## 543 11.00     4     2  31.2750
## 544 32.00     1     0  26.0000
## 545 50.00     1     0 106.4250
## 546 64.00     0     0  26.0000
## 547 19.00     1     0  26.0000
## 548    NA     0     0  13.8625
## 549 33.00     1     1  20.5250
## 550  8.00     1     1  36.7500
## 551 17.00     0     2 110.8833
## 552 27.00     0     0  26.0000
## 553    NA     0     0   7.8292
## 554 22.00     0     0   7.2250
## 555 22.00     0     0   7.7750
## 556 62.00     0     0  26.5500
## 557 48.00     1     0  39.6000
## 558    NA     0     0 227.5250
## 559 39.00     1     1  79.6500
## 560 36.00     1     0  17.4000
## 561    NA     0     0   7.7500
## 562 40.00     0     0   7.8958
## 563 28.00     0     0  13.5000
## 564    NA     0     0   8.0500
## 565    NA     0     0   8.0500
## 566 24.00     2     0  24.1500
## 567 19.00     0     0   7.8958
## 568 29.00     0     4  21.0750
## 569    NA     0     0   7.2292
## 570 32.00     0     0   7.8542
## 571 62.00     0     0  10.5000
## 572 53.00     2     0  51.4792
## 573 36.00     0     0  26.3875
## 574    NA     0     0   7.7500
## 575 16.00     0     0   8.0500
## 576 19.00     0     0  14.5000
## 577 34.00     0     0  13.0000
## 578 39.00     1     0  55.9000
## 579    NA     1     0  14.4583
## 580 32.00     0     0   7.9250
## 581 25.00     1     1  30.0000
## 582 39.00     1     1 110.8833
## 583 54.00     0     0  26.0000
## 584 36.00     0     0  40.1250
## 585    NA     0     0   8.7125
## 586 18.00     0     2  79.6500
## 587 47.00     0     0  15.0000
## 588 60.00     1     1  79.2000
## 589 22.00     0     0   8.0500
## 590    NA     0     0   8.0500
## 591 35.00     0     0   7.1250
## 592 52.00     1     0  78.2667
## 593 47.00     0     0   7.2500
## 594    NA     0     2   7.7500
## 595 37.00     1     0  26.0000
## 596 36.00     1     1  24.1500
## 597    NA     0     0  33.0000
## 598 49.00     0     0   0.0000
## 599    NA     0     0   7.2250
## 600 49.00     1     0  56.9292
## 601 24.00     2     1  27.0000
## 602    NA     0     0   7.8958
## 603    NA     0     0  42.4000
## 604 44.00     0     0   8.0500
## 605 35.00     0     0  26.5500
## 606 36.00     1     0  15.5500
## 607 30.00     0     0   7.8958
## 608 27.00     0     0  30.5000
## 609 22.00     1     2  41.5792
## 610 40.00     0     0 153.4625
## 611 39.00     1     5  31.2750
## 612    NA     0     0   7.0500
## 613    NA     1     0  15.5000
## 614    NA     0     0   7.7500
## 615 35.00     0     0   8.0500
## 616 24.00     1     2  65.0000
## 617 34.00     1     1  14.4000
## 618 26.00     1     0  16.1000
## 619  4.00     2     1  39.0000
## 620 26.00     0     0  10.5000
## 621 27.00     1     0  14.4542
## 622 42.00     1     0  52.5542
## 623 20.00     1     1  15.7417
## 624 21.00     0     0   7.8542
## 625 21.00     0     0  16.1000
## 626 61.00     0     0  32.3208
## 627 57.00     0     0  12.3500
## 628 21.00     0     0  77.9583
## 629 26.00     0     0   7.8958
## 630    NA     0     0   7.7333
## 631 80.00     0     0  30.0000
## 632 51.00     0     0   7.0542
## 633 32.00     0     0  30.5000
## 634    NA     0     0   0.0000
## 635  9.00     3     2  27.9000
## 636 28.00     0     0  13.0000
## 637 32.00     0     0   7.9250
## 638 31.00     1     1  26.2500
## 639 41.00     0     5  39.6875
## 640    NA     1     0  16.1000
## 641 20.00     0     0   7.8542
## 642 24.00     0     0  69.3000
## 643  2.00     3     2  27.9000
## 644    NA     0     0  56.4958
## 645  0.75     2     1  19.2583
## 646 48.00     1     0  76.7292
## 647 19.00     0     0   7.8958
## 648 56.00     0     0  35.5000
## 649    NA     0     0   7.5500
## 650 23.00     0     0   7.5500
## 651    NA     0     0   7.8958
## 652 18.00     0     1  23.0000
## 653 21.00     0     0   8.4333
## 654    NA     0     0   7.8292
## 655 18.00     0     0   6.7500
## 656 24.00     2     0  73.5000
## 657    NA     0     0   7.8958
## 658 32.00     1     1  15.5000
## 659 23.00     0     0  13.0000
## 660 58.00     0     2 113.2750
## 661 50.00     2     0 133.6500
## 662 40.00     0     0   7.2250
## 663 47.00     0     0  25.5875
## 664 36.00     0     0   7.4958
## 665 20.00     1     0   7.9250
## 666 32.00     2     0  73.5000
## 667 25.00     0     0  13.0000
## 668    NA     0     0   7.7750
## 669 43.00     0     0   8.0500
## 670    NA     1     0  52.0000
## 671 40.00     1     1  39.0000
## 672 31.00     1     0  52.0000
## 673 70.00     0     0  10.5000
## 674 31.00     0     0  13.0000
## 675    NA     0     0   0.0000
## 676 18.00     0     0   7.7750
## 677 24.50     0     0   8.0500
## 678 18.00     0     0   9.8417
## 679 43.00     1     6  46.9000
## 680 36.00     0     1 512.3292
## 681    NA     0     0   8.1375
## 682 27.00     0     0  76.7292
## 683 20.00     0     0   9.2250
## 684 14.00     5     2  46.9000
## 685 60.00     1     1  39.0000
## 686 25.00     1     2  41.5792
## 687 14.00     4     1  39.6875
## 688 19.00     0     0  10.1708
## 689 18.00     0     0   7.7958
## 690 15.00     0     1 211.3375
## 691 31.00     1     0  57.0000
## 692  4.00     0     1  13.4167
## 693    NA     0     0  56.4958
## 694 25.00     0     0   7.2250
## 695 60.00     0     0  26.5500
## 696 52.00     0     0  13.5000
## 697 44.00     0     0   8.0500
## 698    NA     0     0   7.7333
## 699 49.00     1     1 110.8833
## 700 42.00     0     0   7.6500
## 701 18.00     1     0 227.5250
## 702 35.00     0     0  26.2875
## 703 18.00     0     1  14.4542
## 704 25.00     0     0   7.7417
## 705 26.00     1     0   7.8542
## 706 39.00     0     0  26.0000
## 707 45.00     0     0  13.5000
## 708 42.00     0     0  26.2875
## 709 22.00     0     0 151.5500
## 710    NA     1     1  15.2458
## 711 24.00     0     0  49.5042
## 712    NA     0     0  26.5500
## 713 48.00     1     0  52.0000
## 714 29.00     0     0   9.4833
## 715 52.00     0     0  13.0000
## 716 19.00     0     0   7.6500
## 717 38.00     0     0 227.5250
## 718 27.00     0     0  10.5000
## 719    NA     0     0  15.5000
## 720 33.00     0     0   7.7750
## 721  6.00     0     1  33.0000
## 722 17.00     1     0   7.0542
## 723 34.00     0     0  13.0000
## 724 50.00     0     0  13.0000
## 725 27.00     1     0  53.1000
## 726 20.00     0     0   8.6625
## 727 30.00     3     0  21.0000
## 728    NA     0     0   7.7375
## 729 25.00     1     0  26.0000
## 730 25.00     1     0   7.9250
## 731 29.00     0     0 211.3375
## 732 11.00     0     0  18.7875
## 733    NA     0     0   0.0000
## 734 23.00     0     0  13.0000
## 735 23.00     0     0  13.0000
## 736 28.50     0     0  16.1000
## 737 48.00     1     3  34.3750
## 738 35.00     0     0 512.3292
## 739    NA     0     0   7.8958
## 740    NA     0     0   7.8958
## 741    NA     0     0  30.0000
## 742 36.00     1     0  78.8500
## 743 21.00     2     2 262.3750
## 744 24.00     1     0  16.1000
## 745 31.00     0     0   7.9250
## 746 70.00     1     1  71.0000
## 747 16.00     1     1  20.2500
## 748 30.00     0     0  13.0000
## 749 19.00     1     0  53.1000
## 750 31.00     0     0   7.7500
## 751  4.00     1     1  23.0000
## 752  6.00     0     1  12.4750
## 753 33.00     0     0   9.5000
## 754 23.00     0     0   7.8958
## 755 48.00     1     2  65.0000
## 756  0.67     1     1  14.5000
## 757 28.00     0     0   7.7958
## 758 18.00     0     0  11.5000
## 759 34.00     0     0   8.0500
## 760 33.00     0     0  86.5000
## 761    NA     0     0  14.5000
## 762 41.00     0     0   7.1250
## 763 20.00     0     0   7.2292
## 764 36.00     1     2 120.0000
## 765 16.00     0     0   7.7750
## 766 51.00     1     0  77.9583
## 767    NA     0     0  39.6000
## 768 30.50     0     0   7.7500
## 769    NA     1     0  24.1500
## 770 32.00     0     0   8.3625
## 771 24.00     0     0   9.5000
## 772 48.00     0     0   7.8542
## 773 57.00     0     0  10.5000
## 774    NA     0     0   7.2250
## 775 54.00     1     3  23.0000
## 776 18.00     0     0   7.7500
## 777    NA     0     0   7.7500
## 778  5.00     0     0  12.4750
## 779    NA     0     0   7.7375
## 780 43.00     0     1 211.3375
## 781 13.00     0     0   7.2292
## 782 17.00     1     0  57.0000
## 783 29.00     0     0  30.0000
## 784    NA     1     2  23.4500
## 785 25.00     0     0   7.0500
## 786 25.00     0     0   7.2500
## 787 18.00     0     0   7.4958
## 788  8.00     4     1  29.1250
## 789  1.00     1     2  20.5750
## 790 46.00     0     0  79.2000
## 791    NA     0     0   7.7500
## 792 16.00     0     0  26.0000
## 793    NA     8     2  69.5500
## 794    NA     0     0  30.6958
## 795 25.00     0     0   7.8958
## 796 39.00     0     0  13.0000
## 797 49.00     0     0  25.9292
## 798 31.00     0     0   8.6833
## 799 30.00     0     0   7.2292
## 800 30.00     1     1  24.1500
## 801 34.00     0     0  13.0000
## 802 31.00     1     1  26.2500
## 803 11.00     1     2 120.0000
## 804  0.42     0     1   8.5167
## 805 27.00     0     0   6.9750
## 806 31.00     0     0   7.7750
## 807 39.00     0     0   0.0000
## 808 18.00     0     0   7.7750
## 809 39.00     0     0  13.0000
## 810 33.00     1     0  53.1000
## 811 26.00     0     0   7.8875
## 812 39.00     0     0  24.1500
## 813 35.00     0     0  10.5000
## 814  6.00     4     2  31.2750
## 815 30.50     0     0   8.0500
## 816    NA     0     0   0.0000
## 817 23.00     0     0   7.9250
## 818 31.00     1     1  37.0042
## 819 43.00     0     0   6.4500
## 820 10.00     3     2  27.9000
## 821 52.00     1     1  93.5000
## 822 27.00     0     0   8.6625
## 823 38.00     0     0   0.0000
## 824 27.00     0     1  12.4750
## 825  2.00     4     1  39.6875
## 826    NA     0     0   6.9500
## 827    NA     0     0  56.4958
## 828  1.00     0     2  37.0042
## 829    NA     0     0   7.7500
## 830 62.00     0     0  80.0000
## 831 15.00     1     0  14.4542
## 832  0.83     1     1  18.7500
## 833    NA     0     0   7.2292
## 834 23.00     0     0   7.8542
## 835 18.00     0     0   8.3000
## 836 39.00     1     1  83.1583
## 837 21.00     0     0   8.6625
## 838    NA     0     0   8.0500
## 839 32.00     0     0  56.4958
## 840    NA     0     0  29.7000
## 841 20.00     0     0   7.9250
## 842 16.00     0     0  10.5000
## 843 30.00     0     0  31.0000
## 844 34.50     0     0   6.4375
## 845 17.00     0     0   8.6625
## 846 42.00     0     0   7.5500
## 847    NA     8     2  69.5500
## 848 35.00     0     0   7.8958
## 849 28.00     0     1  33.0000
## 850    NA     1     0  89.1042
## 851  4.00     4     2  31.2750
## 852 74.00     0     0   7.7750
## 853  9.00     1     1  15.2458
## 854 16.00     0     1  39.4000
## 855 44.00     1     0  26.0000
## 856 18.00     0     1   9.3500
## 857 45.00     1     1 164.8667
## 858 51.00     0     0  26.5500
## 859 24.00     0     3  19.2583
## 860    NA     0     0   7.2292
## 861 41.00     2     0  14.1083
## 862 21.00     1     0  11.5000
## 863 48.00     0     0  25.9292
## 864    NA     8     2  69.5500
## 865 24.00     0     0  13.0000
## 866 42.00     0     0  13.0000
## 867 27.00     1     0  13.8583
## 868 31.00     0     0  50.4958
## 869    NA     0     0   9.5000
## 870  4.00     1     1  11.1333
## 871 26.00     0     0   7.8958
## 872 47.00     1     1  52.5542
## 873 33.00     0     0   5.0000
## 874 47.00     0     0   9.0000
## 875 28.00     1     0  24.0000
## 876 15.00     0     0   7.2250
## 877 20.00     0     0   9.8458
## 878 19.00     0     0   7.8958
## 879    NA     0     0   7.8958
## 880 56.00     0     1  83.1583
## 881 25.00     0     1  26.0000
## 882 33.00     0     0   7.8958
## 883 22.00     0     0  10.5167
## 884 28.00     0     0  10.5000
## 885 25.00     0     0   7.0500
## 886 39.00     0     5  29.1250
## 887 27.00     0     0  13.0000
## 888 19.00     0     0  30.0000
## 889    NA     1     2  23.4500
## 890 26.00     0     0  30.0000
## 891 32.00     0     0   7.7500
# 2B. hapus missing value
data_misval <- na.omit(data_olah1) 
data_misval
##       Age SibSp Parch     Fare
## 1   22.00     1     0   7.2500
## 2   38.00     1     0  71.2833
## 3   26.00     0     0   7.9250
## 4   35.00     1     0  53.1000
## 5   35.00     0     0   8.0500
## 7   54.00     0     0  51.8625
## 8    2.00     3     1  21.0750
## 9   27.00     0     2  11.1333
## 10  14.00     1     0  30.0708
## 11   4.00     1     1  16.7000
## 12  58.00     0     0  26.5500
## 13  20.00     0     0   8.0500
## 14  39.00     1     5  31.2750
## 15  14.00     0     0   7.8542
## 16  55.00     0     0  16.0000
## 17   2.00     4     1  29.1250
## 19  31.00     1     0  18.0000
## 21  35.00     0     0  26.0000
## 22  34.00     0     0  13.0000
## 23  15.00     0     0   8.0292
## 24  28.00     0     0  35.5000
## 25   8.00     3     1  21.0750
## 26  38.00     1     5  31.3875
## 28  19.00     3     2 263.0000
## 31  40.00     0     0  27.7208
## 34  66.00     0     0  10.5000
## 35  28.00     1     0  82.1708
## 36  42.00     1     0  52.0000
## 38  21.00     0     0   8.0500
## 39  18.00     2     0  18.0000
## 40  14.00     1     0  11.2417
## 41  40.00     1     0   9.4750
## 42  27.00     1     0  21.0000
## 44   3.00     1     2  41.5792
## 45  19.00     0     0   7.8792
## 50  18.00     1     0  17.8000
## 51   7.00     4     1  39.6875
## 52  21.00     0     0   7.8000
## 53  49.00     1     0  76.7292
## 54  29.00     1     0  26.0000
## 55  65.00     0     1  61.9792
## 57  21.00     0     0  10.5000
## 58  28.50     0     0   7.2292
## 59   5.00     1     2  27.7500
## 60  11.00     5     2  46.9000
## 61  22.00     0     0   7.2292
## 62  38.00     0     0  80.0000
## 63  45.00     1     0  83.4750
## 64   4.00     3     2  27.9000
## 67  29.00     0     0  10.5000
## 68  19.00     0     0   8.1583
## 69  17.00     4     2   7.9250
## 70  26.00     2     0   8.6625
## 71  32.00     0     0  10.5000
## 72  16.00     5     2  46.9000
## 73  21.00     0     0  73.5000
## 74  26.00     1     0  14.4542
## 75  32.00     0     0  56.4958
## 76  25.00     0     0   7.6500
## 79   0.83     0     2  29.0000
## 80  30.00     0     0  12.4750
## 81  22.00     0     0   9.0000
## 82  29.00     0     0   9.5000
## 84  28.00     0     0  47.1000
## 85  17.00     0     0  10.5000
## 86  33.00     3     0  15.8500
## 87  16.00     1     3  34.3750
## 89  23.00     3     2 263.0000
## 90  24.00     0     0   8.0500
## 91  29.00     0     0   8.0500
## 92  20.00     0     0   7.8542
## 93  46.00     1     0  61.1750
## 94  26.00     1     2  20.5750
## 95  59.00     0     0   7.2500
## 97  71.00     0     0  34.6542
## 98  23.00     0     1  63.3583
## 99  34.00     0     1  23.0000
## 100 34.00     1     0  26.0000
## 101 28.00     0     0   7.8958
## 103 21.00     0     1  77.2875
## 104 33.00     0     0   8.6542
## 105 37.00     2     0   7.9250
## 106 28.00     0     0   7.8958
## 107 21.00     0     0   7.6500
## 109 38.00     0     0   7.8958
## 111 47.00     0     0  52.0000
## 112 14.50     1     0  14.4542
## 113 22.00     0     0   8.0500
## 114 20.00     1     0   9.8250
## 115 17.00     0     0  14.4583
## 116 21.00     0     0   7.9250
## 117 70.50     0     0   7.7500
## 118 29.00     1     0  21.0000
## 119 24.00     0     1 247.5208
## 120  2.00     4     2  31.2750
## 121 21.00     2     0  73.5000
## 123 32.50     1     0  30.0708
## 124 32.50     0     0  13.0000
## 125 54.00     0     1  77.2875
## 126 12.00     1     0  11.2417
## 128 24.00     0     0   7.1417
## 130 45.00     0     0   6.9750
## 131 33.00     0     0   7.8958
## 132 20.00     0     0   7.0500
## 133 47.00     1     0  14.5000
## 134 29.00     1     0  26.0000
## 135 25.00     0     0  13.0000
## 136 23.00     0     0  15.0458
## 137 19.00     0     2  26.2833
## 138 37.00     1     0  53.1000
## 139 16.00     0     0   9.2167
## 140 24.00     0     0  79.2000
## 142 22.00     0     0   7.7500
## 143 24.00     1     0  15.8500
## 144 19.00     0     0   6.7500
## 145 18.00     0     0  11.5000
## 146 19.00     1     1  36.7500
## 147 27.00     0     0   7.7958
## 148  9.00     2     2  34.3750
## 149 36.50     0     2  26.0000
## 150 42.00     0     0  13.0000
## 151 51.00     0     0  12.5250
## 152 22.00     1     0  66.6000
## 153 55.50     0     0   8.0500
## 154 40.50     0     2  14.5000
## 156 51.00     0     1  61.3792
## 157 16.00     0     0   7.7333
## 158 30.00     0     0   8.0500
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## 803 11.00     1     2 120.0000
## 804  0.42     0     1   8.5167
## 805 27.00     0     0   6.9750
## 806 31.00     0     0   7.7750
## 807 39.00     0     0   0.0000
## 808 18.00     0     0   7.7750
## 809 39.00     0     0  13.0000
## 810 33.00     1     0  53.1000
## 811 26.00     0     0   7.8875
## 812 39.00     0     0  24.1500
## 813 35.00     0     0  10.5000
## 814  6.00     4     2  31.2750
## 815 30.50     0     0   8.0500
## 817 23.00     0     0   7.9250
## 818 31.00     1     1  37.0042
## 819 43.00     0     0   6.4500
## 820 10.00     3     2  27.9000
## 821 52.00     1     1  93.5000
## 822 27.00     0     0   8.6625
## 823 38.00     0     0   0.0000
## 824 27.00     0     1  12.4750
## 825  2.00     4     1  39.6875
## 828  1.00     0     2  37.0042
## 830 62.00     0     0  80.0000
## 831 15.00     1     0  14.4542
## 832  0.83     1     1  18.7500
## 834 23.00     0     0   7.8542
## 835 18.00     0     0   8.3000
## 836 39.00     1     1  83.1583
## 837 21.00     0     0   8.6625
## 839 32.00     0     0  56.4958
## 841 20.00     0     0   7.9250
## 842 16.00     0     0  10.5000
## 843 30.00     0     0  31.0000
## 844 34.50     0     0   6.4375
## 845 17.00     0     0   8.6625
## 846 42.00     0     0   7.5500
## 848 35.00     0     0   7.8958
## 849 28.00     0     1  33.0000
## 851  4.00     4     2  31.2750
## 852 74.00     0     0   7.7750
## 853  9.00     1     1  15.2458
## 854 16.00     0     1  39.4000
## 855 44.00     1     0  26.0000
## 856 18.00     0     1   9.3500
## 857 45.00     1     1 164.8667
## 858 51.00     0     0  26.5500
## 859 24.00     0     3  19.2583
## 861 41.00     2     0  14.1083
## 862 21.00     1     0  11.5000
## 863 48.00     0     0  25.9292
## 865 24.00     0     0  13.0000
## 866 42.00     0     0  13.0000
## 867 27.00     1     0  13.8583
## 868 31.00     0     0  50.4958
## 870  4.00     1     1  11.1333
## 871 26.00     0     0   7.8958
## 872 47.00     1     1  52.5542
## 873 33.00     0     0   5.0000
## 874 47.00     0     0   9.0000
## 875 28.00     1     0  24.0000
## 876 15.00     0     0   7.2250
## 877 20.00     0     0   9.8458
## 878 19.00     0     0   7.8958
## 880 56.00     0     1  83.1583
## 881 25.00     0     1  26.0000
## 882 33.00     0     0   7.8958
## 883 22.00     0     0  10.5167
## 884 28.00     0     0  10.5000
## 885 25.00     0     0   7.0500
## 886 39.00     0     5  29.1250
## 887 27.00     0     0  13.0000
## 888 19.00     0     0  30.0000
## 890 26.00     0     0  30.0000
## 891 32.00     0     0   7.7500
print(dim(data_olah1))
## [1] 891   4
print(dim(data_misval))
## [1] 714   4
#3Ai. korelasi matrik
cor_mat <- cor(data_misval) 
cor_mat
##               Age      SibSp      Parch       Fare
## Age    1.00000000 -0.3082468 -0.1891193 0.09606669
## SibSp -0.30824676  1.0000000  0.3838199 0.13832879
## Parch -0.18911926  0.3838199  1.0000000 0.20511888
## Fare   0.09606669  0.1383288  0.2051189 1.00000000
#3aii. cor plot
library(corrplot)
corrplot(cor_mat,
         method = "color",
         type = "full",
         tl.col = "black",
         tl.srt = 45,
         title = "Correlation Matrix Heatmap",
         mar = c(0, 0, 2, 0))

#3Bi. varian covarian
cov_mat <- cov(data_misval)
cov_mat
##              Age      SibSp      Parch        Fare
## Age   211.019125 -4.1633339 -2.3441911   73.849030
## SibSp  -4.163334  0.8644973  0.3045128    6.806212
## Parch  -2.344191  0.3045128  0.7281027    9.262176
## Fare   73.849030  6.8062117  9.2621760 2800.413100
#3Bii. plot variance covariance all
panel.scatter.mean <- function(x,y,...){ 
  points(x,y,pch = 19,col ="blue") 
  points(mean(y),pch = 19,col = "black",cex = 1.8)
  points(mean(x),pch = 19,col = "red",cex = 1.8) 
}

panel.diag.scatter.mean <- function(x, ...) { 
  points(x, x, col ="blue", pch = 19) 
  points(mean(x), mean(x), col = "red", pch = 19, cex =2)
} 

data_misval_num <- data_misval[, sapply(data_misval, is.numeric)]
par(mar = c(3,3,2,2)) 
pairs(data_misval_num, main = "Scatterplot Matrix",
      lower.panel = panel.scatter.mean, upper.panel = panel.scatter.mean, diag.panel =panel.diag.scatter.mean)

#3Biii.plot variance kovariance fare age
mean_age <- mean(data_misval$Age)
mean_fare <- mean(data_misval$Fare)
plot(data_misval$Age,
  data_misval$Fare,
  main="Age vs Fare ", 
  xlab="Age",
  ylab="Fare",
  pch=19,
  col="blue")
points(mean_age, col = "red", pch = 19, cex = 2)
points(mean_fare, col ="black", pch = 19, cex = 2)

#3Ci.eigen vekcyor dan eigen value
eigen_res <- eigen(cov_mat)
eigen_res[["values"]]
## [1] 2802.5636587  209.0385659    0.9438783    0.4787214
eigen_val <- eigen_res$values
eigen_vec <- eigen_res$vectors

#3Cii. eigen value
print(eigen_val)
## [1] 2802.5636587  209.0385659    0.9438783    0.4787214
#3Ciii. eigen vektor
print(eigen_vec)
##             [,1]        [,2]         [,3]          [,4]
## [1,] 0.028477552  0.99929943 -0.024018111  0.0035788596
## [2,] 0.002386349 -0.02093144 -0.773693322  0.6332099362
## [3,] 0.003280818 -0.01253786 -0.633088089 -0.7739712590
## [4,] 0.999586200 -0.02837826  0.004609234  0.0009266652
#3Civ.plot eigen
eigen_val = eigen_res$values
plot(eigen_val, type = "b",
  pch = 19,  
  col = "blue", 
  xlab = "Principal Component", 
  ylab = "Eigenvalue",
  main = "Scree Plot")