MATLAB: Is mapstd the same as Zcore ? what is the reverse function

Question

Hi All

for my work , I should apply zcore to my target matrix , that is a 4×1055 matrix , the zcore I apply is like :

[ tc meanT stdT] = zscore(tc)

and for rolling back I do :

an = meanT + stdT'* an';

I just wanted to know if the mapstd works the same and if the above is correct ?

thank you very much

Answer 1

They are not the same. The most notable difference is that mapstd operates on rows, while zscore operates on columns.

If you are using neural networks, use mapstd for consistency with other neural network functions.