_______________ returns TRUE then X can be termed as a matrix data object.
(a) is.”matrix(X”)
(b) is.matrix(X)
(c) is.notamatrix(X )
(d) is.matrix(“X”)
I have been asked this question in unit test.
I'd like to ask this question from Functions in section Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming
Select the correct answer from above options