Tugas

Bentuk 1 buah data (bebas) berisi 5 kolom dan 5 baris kemudian buatkan plot serta hitung korelasinya. Kemudian upload hasil pada rpubs yang sudah dibentuk.

Jawaban

Input Data

data.students <- data.frame(ID = c(15,25,35,45,55), AGE = c(17,18,21,15,23), ENGLISH = c(55,45,35,42,27), MATH = c(78,56,50,45,38), SOCIAL = c(65,50,49,35,67)); data.students
##   ID AGE ENGLISH MATH SOCIAL
## 1 15  17      55   78     65
## 2 25  18      45   56     50
## 3 35  21      35   50     49
## 4 45  15      42   45     35
## 5 55  23      27   38     67

Membuat Plot

hist(data.students$ID, main="Plot Histogram Id", col = "red")

hist(data.students$AGE, main="Plot Histogram Age", col = "blue")

hist(data.students$ENGLISH, main="Plot Histogram English", col = "green")

hist(data.students$MATH, main="Plot Histogram Math", col = "brown")

hist(data.students$SOCIAL, main="Plot Histogram Social", col = "purple")

boxplot(data.students, main="Plot Boxplot Value", col="yellow")

Menghitung Korelasi

cor(data.students)
##                 ID        AGE     ENGLISH       MATH      SOCIAL
## ID       1.0000000  0.4455664 -0.88464621 -0.9430178 -0.13253974
## AGE      0.4455664  1.0000000 -0.77349097 -0.4442898  0.59174558
## ENGLISH -0.8846462 -0.7734910  1.00000000  0.9049352 -0.06106435
## MATH    -0.9430178 -0.4442898  0.90493522  1.0000000  0.29542462
## SOCIAL  -0.1325397  0.5917456 -0.06106435  0.2954246  1.00000000