R

Basic Operations

9

pi

100 %% 5

100 %% 7

4 : 10

5 : -5

1 / 0

0 / 0

-1 / 0

All together :

Vector Operations

vector = c(11, 42, 93, 77, 15, 69, 27, 98, 9, 160)

vector

vector[5]

class(vector)

min(vector)

max(vector)

length(vector)

vector_2 = c("a", "b", "c", "d", "e")

vector_2

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Logical Operations

num = c(10, 20, 30, 40, 50)

num < 20 | num > 40

all (num > 0)

any (num > 20)

sqrt(81)

sqrt(-1)

sqrt(-1 + 0i)

sqrt(as.complex(-10))

x < 10

x

x = x + 20

a = c(1, 2, 3, 4) b = c(5, 6, 7, 8)

a + b

a*b

a - b

b%%a

b/a

a^2

d = list(1, 2, 3, 4)

help(list)

Matrix Operations

Matrix = matrix(c(1, 3, 5, 7, 9, 11, 13, 15, 17), nrow = 3, ncol = 3, byrow = TRUE)

Matrix[2,] #display 2nd row

Matrix[,3] #display 3rd column

Matrix[1,3] #display 1st row and 3rd column

Matrix[, c(1, 2)] #display 1st and 2nd column only

t(Matrix) #Transpose of Matrix

Matrix_2 = matrix(c(10, 20, 30, 40, 50, 60), nrow = 3, ncol = 2, byrow = FALSE)

Matrix_3 = matrix(c(70, 80, 90), nrow = 3, ncol = 1)

Matrix_4 = cbind(Matrix_2, Matrix_3)

All Together