How does nanstd function process complex numbers
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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
回答（1 个）
David Goodmanson
2021-2-25
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) )
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2021-2-24
2021-2-25
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