Getting an error saying "Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters"

Here is my code that I have and I have checked to make sure there are correct number of parenthesis on both sides, but continues to give this error. Any help would be appreciated.

Code:

%%Root Mean Square envelope (moving average)- mean power of signal
envelope=zeros(L,4);		%L= length(data)

%Window size in ms
window=50;  %larger more of original signal but distortion and spikey, lower number could be flat

for i=1:4
	envelope(:,i) = sqrt(movmean(((rec_signal(:,i).^2),window)));%Average according to moving window size; %sim to RMS

Unexpected ',' in parentheses. When creating a matrix, use square brackets [].

end

Answer 1

[Image Analyst]

You have too many parentheses. This works:

L = 21;
rec_signal = rand(L, 4);

%% Root Mean Square envelope (moving average) - mean power of signal
envelope = zeros(L,4);		% L = length(data)

% Window size in ms
window = 50;  % Larger more of original signal but distortion and spikey, lower number could be flat

for i = 1 : 4
    envelope(:,i) = sqrt(movmean((rec_signal(:,i).^2),window)); % Average according to moving window size; %sim to RMS
end

[Abhinit]

Yes that worked!! Thank you very much, sorry I missed the extra parenthesis on both sides. Appreciate your help.

[Image Analyst]

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