How does nanstd function process complex numbers

Hi, I would like to know how Matlab process nanstd of a complex matrix?

Let C be a complex matrix defined by C=A+Bj,

nanstd(C) returns a complex matrix with dimentions equal to C and real(nanstd(C)) is ~= nanstd(A)

I just dont understand how it is computed and I can not find the explanation on Matalabs documentation.

Thank you

Answer 1

[David Goodmanson]

Hi Luciano

I'm not sure what you are referrng to with

" nanstd(C) returns a complex matrix with dimentions equal to C and real(nanstd(C)) is ~= nanstd(A) "

because nanstd(C) returns a row vector with the nanstd of each column calculated separately, and those nanstd values are real already. But it is true that real(nanstd(C)) is ~= nanstd(A) because

nanstd(C) = abs( nanstd(A) + i*nanstd(B) )