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I am trying to update some code that uses the deprecated function PSD to use PWELCH instead.Can anyone help me for solving this problem

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Dhiyaa Al-Shammari
Dhiyaa Al-Shammari 2020-2-16
I want to update the following code instead of using PSD,because when I excute the following code I will get on the following message " psd has been removed use periodogram or pwelch instead ",I must to use another one like pwelch or periodogram,so I need anyone please to update my code.
I have the following code
function value = aubt_getSpecRange (data, hz, r1, r2)
% Expects as input a signal vector and estimates the mean of the frequency
% spectrum in a given range.
%
% values = aubt_getSpecRange (data, hz, r1, r2)
%
% input:
% data: signal vector
% hz: samplerate of the input signal(s)
% r1: lower bound of the frequeny band
% r2: upper bound of the frequeny band
%
% output:
% values: mean of the frequency spectrum
len = length (data);
spec = psd (data, len, hz/2);
spec = spec / sum (spec);
hzPerSample = hz / len;
spec = spec (ceil (r1/hzPerSample)+1:floor (r2/hzPerSample)+1);
if isempty (spec)
value = 0;
else
value = mean (spec);
end

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