Create a date object named Ddata consisting of the following dates.
26Jan2023, 15Aug2023, 020ct2023, 05Sep2023
To create a date object named `Ddata` in R that consists of the following dates manually: * 26 Jan ________ __________ _________ ______ _______ ______ _________ ______ __________ _______ ________ ________.
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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.
Create a date object named Ddata consisting of the following dates.
26Jan2023, 15Aug2023, 020ct2023, 05Sep2023
The following data relates to the number of items produced per shift by two workers for a number of days.
| Worker A | 19 | 22 | 24 | 27 | 24 | 18 |
| Worker B | 26 | 37 | 40 | 35 | NA | NA |
Create the graph of the following function.
Create an array of two dimension with following elements.
Also, extract the row shown in the rectangular box.
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".