Question

(1) Write R code to install the package named "MASS" only if the package is not already installed on the machine. Then attach that package to your current workspace to use it in your programming.

Your code below

(2) Write R code to find what datasets are available only for the MASS package
by creating a file named "R data sets".

Your code below

(3) Write R code to bring up the documentation page for the "Boston" dataset.

Your code below

(4) Write R code to print how many rows and columns are in this data set?

Your code below

Answer 1

1)

packages = c( "MASS")

## if the package is already installed, then load or install&load 
package.check <- lapply(
  packages,
  FUN = function(x) {
    if (!require(x, character.only = TRUE)) {
      install.packages(x, dependencies = TRUE)
      library(x, character.only = TRUE)
    }
  }
)
print("Done")

2) To list all the datasets in the MASS

data(package="MASS")

3).I am not usre how to do this comment. But if you are looking for the summany of teh R code,

summary(Boston)

4)

dim(Boston)

this will return the dimension of the dataset,

ie column and rows