Create an array of two dimension with following elements.

Also, extract the row shown in the rectangular box.

Create the graph of the following function.

Create a function to compute ranks (in case of tied ranks) of the given data.

The following data relates to the number of items produced per shift by two workers for a number  of days.

Create a data frame named RData consisting of the following data:

Write R commands to:

(i) Compute the group wise means of x, y and z according to the groups defined by w column using apply family function.

(ii) Sort RData according the y column of it.

Write the output of the following statements:

(i) rep(x=c(T, F, T, F), times=c(2,1,2,3))

(ii) 5%/%3; diag (3)

(b) Differentiate between the use of the sep and collapse arguments of the paste() function.

(c) Write R commands to create a bar plot of the following data by using arguments of the used function for filling up the bars and to give labels to the axis:

5, 10, 8, 7, 8, 5, 8, 7, 5, 8, 9, 6, 8, 8, 8

(d) Check whether the given loop is finite or infinite. If infinite, do the necessary changes in the written loop to make it finite.

x<-0

repeat{

print(x^2)

x<-x+1

if(x<5) print(x) }2.

Write R command to create a data frame named DF with worker's data and do the following tasks:

(i) Use suitable function to remove NA from the data and then create a scatter plot.

(ii) Write the known data obtained in step (i) to a.txt file named "WORK".