simpan = c(10, 20, 40, 15, 40)
simpan
## [1] 10 20 40 15 40
#Mengakses Data
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
simpan[3] = 100
simpan
## [1] 10 20 100 15 40
simpan[4] = 10000
simpan
## [1] 10 20 100 10000 40
#Menghapus Data
NILAI = c(10, 40, 45, 30, 80)
NILAI = NILAI[-3]
NILAI
## [1] 10 40 30 80
NILAI = c(10, 40, 45, 30, 80)
NILAI = NILAI[-4]
NILAI
## [1] 10 40 45 80
NILAI = c(10, 40, 45, 30, 80)
NILAI = NILAI[c(-1,-3)]
NILAI
## [1] 40 30 80
#Operator > (lebih besar)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90)
NILAI[NILAI > 80]
## [1] 100 95 90
#Operator < (lebih kecil)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90)
NILAI[NILAI < 70]
## [1] 25 60 60 55
#Operator & (dan)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90)
NILAI[NILAI > 60 & NILAI < 80]
## [1] 70
#Operator | (atau)
NILAI = c(100, 95, 70, 80, 25, 60, 80, 60, 55, 90)
NILAI[NILAI > 80 | NILAI < 30]
## [1] 100 95 25 90
#Menghapus nilai ≥ 75
NILAI=NILAI[NILAI<75]
#Penggunaan Lanjutan >
NILAI=NILAI[NILAI>90]
#Function
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 Numeric
mode(1000)
## [1] "numeric"
#Character
mode("HALO")
## [1] "character"
#Logical
d=(F)
mode(d)
## [1] "logical"
#Function
kuadrat=function(x)
{
print(x*x);
}
A=c(4)
kuadrat(A)
## [1] 16
mode(kuadrat)
## [1] "function"
#Operator Matematika
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(3,6,1)
B=c(2,2,0)
A^B
## [1] 9 36 1
A=c(5,2,7)
B=c(3,2,6)
A%%B
## [1] 2 0 1
#length
A=c(100,70,80,55,80,70,80)
length(A)
## [1] 7
#sort
A=c(70,80,50,25,100,60)
sort(A)
## [1] 25 50 60 70 80 100
#diff
A=c(100,50,70,80,60)
diff(A)
## [1] -50 20 10 -20
#sum
A=c(50,60,70,80)
sum(A)
## [1] 260
#sqrt
sqrt(81)
## [1] 9
#Max
A=c(10,25,90,75,95,57)
max(A)
## [1] 95
#Min
A=c(10,25,90,75,95,57)
min(A)
## [1] 10
#Exp
exp(1)
## [1] 2.718282
exp(2)
## [1] 7.389056
#pi
pi
## [1] 3.141593
#options
options(digits=3)
pi
## [1] 3.14
#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
#Function panggil
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
#Tabel
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
A=c(10, 10, 30, 10, 30, 10, 10, 40, 40,70, 90, 70, 80, 60, 60, 90)
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
#Data insomnia
hasil=c("ya", "tidak", "ya", "ya", "ya", "ya", "tidak", "ya", "tidak", "ya")
table(hasil)
## hasil
## tidak ya
## 3 7
hasil=c("ya", "tidak", "ya", "ya", "ya", "ya", "tidak", "ya", "tidak", "ya")
table(hasil)/length(hasil)
## hasil
## tidak ya
## 0.3 0.7
#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 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
#barplot
A=c(10, 10, 10, 10, 20, 20, 30, 30, 30, 30, 30, 30)
barplot(table(A))
#Barplot proporsi
A=c(10, 10, 10, 10, 20, 20, 30, 30, 30, 30, 30, 30)
barplot(table(A)/length(A))
#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)
#Alternatif plot
A=c(10,10,10,10,10,20,20,20,30,30,40)
plot(table(A))
