#Creating the vectors

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


#Row-binding the vectors to form a 3*4 matrix

matrixdata <- rbind(a,b,c)


#Changing the column names

colnames(matrixdata) <- c("Mon", "Tue", "Wed", "Thu")


#Changing the row names

rownames(matrixdata) <- c("Present", "Absent", "On Leave")


#Calculating the row and columns sums & Printing

row_sums <- rowSums(matrixdata)
column_sums <- colSums(matrixdata)

print(matrixdata)
##          Mon Tue Wed Thu
## Present    2   5   6   7
## Absent     1   0   9   8
## On Leave   6   5   8   3
print(row_sums)
##  Present   Absent On Leave 
##       20       18       22
print(column_sums)
## Mon Tue Wed Thu 
##   9  10  23  18