This should be done in R Studio.

$2-$ Vectors from Data Frames

Load the data set ixis from the datasets library using the following code chunk:

data$($ixis$)$

The data set has the variables Sepal $.$ Length, Sepal $.$ Width, Petal $.$ Length, Petal $.$ Width and Species.

a$.$ Create a vector named sepal $.$ length that contains only the values of the Sepal $.$ Length column of iris using the $ operator.

b$.$ Determine how many Sepal. Length values are greater than $7.$ Use the which$()$ function to determine which vector indices correspond to those large