Assignment 1

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Assignment Workshop 01

Intro to R

Arithmetic Calculations

(5*4)^(4*5)-56

## [1] 1.048576e+26

23-1*(8-12)

## [1] 27

56/8*(3+4)

## [1] 49

45-5*8+(8+9)

## [1] 22

Create Vectors

a <- c(2,5,6,7)
b <- c(1,0,9,8)
c <- c(6,5,8,3)

Create Matrix

m <- rbind(a,b,c)
colnames(m) <- c("Mon", "Tue", "Wed", "Thu")
rownames(m) <- c("Present", "Absent", "On leave")
m

##          Mon Tue Wed Thu
## Present    2   5   6   7
## Absent     1   0   9   8
## On leave   6   5   8   3

Calculate Row and Column Sums

row_sums <- rowSums(m)
col_sums <- colSums(m)

row_sums

##  Present   Absent On leave 
##       20       18       22

col_sums

## Mon Tue Wed Thu 
##   9  10  23  18