How do I take the 'left' side of a matrix? (row-wise)
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General question:
imagine my matrix being:
a =
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
then i want to get a matrix:
b =
1 2 3
1 2 3
1 2 3
More specifically:
I have a matrix of size n x 59577, a for loop adds a new row of data to the matrix depending how many audio files are being read.
numSamples = 59577; %the length of the audio files in samples
files = [1,3]; %These numbers can be chosen (values point to a different audio file)
nLoadedFiles = length(files);
for ii = 1:nLoadedFiles
%Get the audio samples from the cell array and store them as rows in 'samples'
samples(ii,:) = audioData{files(ii)};
%Take the fft of all loaded samples
ffts(ii,:) = fft(samples(ii,:));
SSBs(ii,:) = ffts(ii(1:numSamples/2),:); %This gives: Index exceeds the number of array elements (1).
%So im looking for how to declare
SSBs = %SHOULD BE A COPY OF THE ROWS IN FFTS, BUT THEN ONLY THE FIRST HALF, IE. (1:numSamples/2)
end
Maybe the error is caused by numSamples being odd? (59577)
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