R functions allow to manipulate arrays, lists, data frames and slices of data from matrices in a repetitive way, without using loops

Which R function can be used to find the structure of a data frame or vector?summary()describe()str()overview()

In R, define the column vector

Which library in C provides functions for mathematical operations on matrices?

Use R data frames to study and analyze real-world datasets, perform basic data manipulations, and generate descriptive statistics using R functions.

The transpose of a matrix in C can be efficiently computed using:Two nested loopsRecursionPointersmemcpy() function