Print matrix without column names but kept alligned?

Question

I would like to print a matrix without column names and found this answer. However, this will result in the columns of the output not being aligned anymore, when the row names a

Answer 1

If you really don't want matrix or table class, then you can use data frame, by using that you can easily hide column names and make data kept aligned.

>d = as.data.frame(m)
>colnames(d)=NULL
>d                   
 First Row  A C E G I K
 Second Row B D F H J L