Check if the Object is a Matrix in R Programming – is.matrix() Function
is.matrix()
function in R Language is used to return TRUE if the specified data is in the form of matrix else return FALSE.
Syntax: is.matrix(x)
Parameters:
x: specified matrix
Example 1:
# R program to illustrate # is.matrix function # Specifying some different types of arrays A < - matrix(c( 1 : 5 )) B < - matrix(c( 1 : 12 ), nrow = 4 , byrow = TRUE) C < - matrix(c( 1 : 12 ), nrow = 4 , byrow = FALSE) # Calling is.matrix() function is .matrix(A) is .matrix(B) is .matrix(C) |
Output:
[1] TRUE [1] TRUE [1] TRUE
Example 2:
# R program to illustrate # is.matrix function # Specifying Biochemical oxygen demand data x < - BOD # Calling is.matrix() function is .matrix(x) # Calling is.matrix() function # over different types of data is .matrix( 4 ) is .matrix( "2" ) is .matrix( "a" ) |
Output:
[1] FALSE [1] FALSE [1] FALSE [1] FALSE