TUGAS 1 KOMPUTASI STATISTIKA

###################
#NAMA    : Ariiqah Kirana
#NIM     : 2507016013
#KELAS   : B
#MATKUL  : Komputasi Statistika
###################

#Menyimpan Data dalam Variabel (Fungsi c)# 
simpan = c (10, 20, 40, 15, 40) 
simpan

## [1] 10 20 40 15 40

simpan = c (1000, 2000, 3000, 4000, 5000)
simpan

## [1] 1000 2000 3000 4000 5000

#Mengakses Nilai Data dalam Variabel secara Individual
simpan = c (10, 20, 40, 15, 40) 
simpan[3]

## [1] 40

simpan[4]

## [1] 15

simpan[c(1,3,4)]

## [1] 10 40 15

simpan[2:4]

## [1] 20 40 15

#Mengubah Nilai Data dalam Variabel  
simpan = c (10, 20, 40, 15, 40) 
simpan

## [1] 10 20 40 15 40

simpan[3]=100 
simpan[4]=10000 
simpan

## [1]    10    20   100 10000    40

#Menghapus Nilai Data dalam Variabel 
NILAI = c(10, 40, 45, 30, 80)
NILAI

## [1] 10 40 45 30 80

NILAI = NILAI[-3] 
NILAI

## [1] 10 40 30 80

NILAI = NILAI[-4] 
NILAI

## [1] 10 40 30

NILAI = NILAI[c(-1,-3)] 
NILAI

## [1] 40

#Penggunaan Operator > (Lebih Besar Dari)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI[NILAI>80]

## [1] 100  95  90

#Penggunaan Operator < (Lebih Kecil Dari) 
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI[NILAI<70]

## [1] 25 60 60 55

#Penggunaan Operator & (Dan)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI[NILAI>60&NILAI<80]

## [1] 70

#Penggunaan Operator | (Atau) 
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI[NILAI>80 | NILAI<30]

## [1] 100  95  25  90

#Lebih Lanjut Penggunaan Operator < (Lebih Kecil Dari) 
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI = NILAI[NILAI<75]
NILAI

## [1] 70 25 60 60 55

#Lebih Lanjut Penggunaan Operator > (Lebih Besar Dari) 
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
NILAI

##  [1] 100  95  70  80  25  60  80  60  55  90

NILAI = NILAI[NILAI>90] 
NILAI

## [1] 100  95

#Contoh Sederhana Penggunaan dari Bahasa Pemrograman R 
fungsi = function(x) 
{ 
  for(i in 1 : length(x)) 
  { 
    if(x[i]<65) 
    { 
      x[i] = x[i]+10; 
    } 
    print(x[i]) 
  } 
} 
A = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90) 
fungsi(A)

## [1] 100
## [1] 95
## [1] 70
## [1] 80
## [1] 35
## [1] 70
## [1] 80
## [1] 70
## [1] 65
## [1] 90

#Jenis Data R# 
#numerik
mode(1000)

## [1] "numeric"

simpan = c(1000)
mode(simpan)

## [1] "numeric"

#character
mode("HALO")

## [1] "character"

simpan = c("HALO")
mode(simpan)

## [1] "character"

#logical
d = (F) 
d

## [1] FALSE

a = c(T)
a

## [1] TRUE

mode(d)

## [1] "logical"

mode(a)

## [1] "logical"

#function
kuadrat = function(x) 
{ 
  print(x*x); 
} 
A = c(4) 
kuadrat(A)

## [1] 16

mode(kuadrat)

## [1] "function"

#Operator Penjumlahan +, Pengurangan -, Perkalian *, Pembagian /, Pangkat ^, Sisa %%
A = c(1, 2, 3)
B = c(4, 5, 6)
C = A+B
C

## [1] 5 7 9

A = c(1, 2, 3)
B = 2+A
B

## [1] 3 4 5

A = c(2, 4, 6)
B = c(1, 3, 5)
B-A

## [1] -1 -1 -1

A = c(4, 8, 12)
A*0.5

## [1] 2 4 6

A = c(4, 8, 12)
B = c(2, 2, 2)
A/B

## [1] 2 4 6

A = c(3, 6, 9)
B = c(2, 2, 0)
A^B

## [1]  9 36  1

A = c(5, 2, 7)
B = c(3, 2, 6)
C = A%%B
C

## [1] 2 0 1

#Fungsi length
A = c(100,70,80,55,80,70,80) 
length(A)

## [1] 7

#Fungsi sort 
A = c(70,80,50,25,100,60) 
sort(A)

## [1]  25  50  60  70  80 100

#Fungsi diff
A = c(100,50,70,80,60) 
diff(A)

## [1] -50  20  10 -20

#Fungsi sum
A = c(50,60,70,80) 
sum(A)

## [1] 260

#Fungsi sqrt 
a = sqrt(81)
a

## [1] 9

b = sqrt(a)
b

## [1] 3

#Fungsi max & min 
A = c(10,25,90,75,95,57) 
max(A)

## [1] 95

min(A)

## [1] 10

#Fungsi exp
exp(1)

## [1] 2.718282

exp(2)

## [1] 7.389056

#Fungsi pi 
pi

## [1] 3.141593

#Fungsi options 
options(digits=3) 
pi

## [1] 3.14

options(digits=10) 
pi

## [1] 3.141592654

#Fungsi seq 
seq(from=1, to=10)

##  [1]  1  2  3  4  5  6  7  8  9 10

seq(from=2, by=0.5, length.out=4)

## [1] 2.0 2.5 3.0 3.5

panggil = function(x,y,z) 
{ 
  a = x; 
  print(a); 
  for(i in x : z) 
  { 
    a = a+y; 
    if(a>z) 
    { 
      break; 
    } 
    print(a); 
  } 
} 
panggil(2,3,30)

## [1] 2
## [1] 5
## [1] 8
## [1] 11
## [1] 14
## [1] 17
## [1] 20
## [1] 23
## [1] 26
## [1] 29

seq(2, 20, 3)

## [1]  2  5  8 11 14 17 20

# Fungsi table
A = c(10, 10, 30, 10, 30, 10, 10, 40, 40, 70, 90, 70, 80, 60, 60, 90)
table(A)

## A
## 10 30 40 60 70 80 90 
##  5  2  2  2  2  1  2

table(A)/length(A)

## A
##     10     30     40     60     70     80     90 
## 0.3125 0.1250 0.1250 0.1250 0.1250 0.0625 0.1250

hasil = c("ya", "tidak", "ya", "ya", "ya", "ya", "tidak", "ya", "tidak", "ya")
table(hasil)

## hasil
## tidak    ya 
##     3     7

table(hasil)/length(hasil)

## hasil
## tidak    ya 
##   0.3   0.7

# Fungsi factor
A = c("ikan", "ikan", "udang", "ikan", "udang", "ikan", "ikan", "udang")
factor(A)

## [1] ikan  ikan  udang ikan  udang ikan  ikan  udang
## Levels: ikan udang

A = c("sarjana", "diploma", "sarjana", "pengangguran", "sarjana", "diploma", "diploma", "pengangguran")
factor(A)

## [1] sarjana      diploma      sarjana      pengangguran sarjana     
## [6] diploma      diploma      pengangguran
## Levels: diploma pengangguran sarjana

# Fungsi barplot
A = c(10, 10, 10, 10, 20, 20, 30, 30, 30, 30, 30, 30)
barplot(table(A))

barplot(table(A)/length(A))

# Fungsi plot
A = c(10,10,10,10,10,20,20,20,30,30,40)
table(A)

## A
## 10 20 30 40 
##  5  3  2  1

nilai = c(10,20,30,40)
frekuensi = c(5,3,2,1)
plot(nilai, frekuensi)

A = c(10,10,10,10,10,20,20,20,30,30,40)
plot(table(A))

TUGAS 1 KOMPUTASI STATISTIKA

Ariiqah Kirana

2026-08-17