Does "rowfun" preallocate a table?

I would like to use "rowfun" to create a new table from an older table. I am wondering how to do this with a preallocated table.

Answer 1

[MathWorks Support Team]

"rowfun" already preallocates a table based on the input. This can be observed by inspecting the implementation of "rowfun":

>> edit rowfun.m