Extract certain rows from matrix

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Gareth Evans
Gareth Evans le 6 Mar 2015
Commenté : Gareth Evans le 6 Mar 2015
Hello,
I have extracted the peak data from a 1x86400 matrix in the workspace (named a) using the following command:
[pks,locs]=findpeaks(a)
This results in 'pks' = 1x14382 and the 'locs' positions for the obtained data (Also sized at 1x14382).
I would like to use the locations (locs) from the above to extract data from another 1x86400 data file (in this case named b).
Whats the best approach to do this?

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Andrew Newell
Andrew Newell le 6 Mar 2015
Modifié(e) : Andrew Newell le 6 Mar 2015
Assuming you read the other data file into another_matrix, the answer is
extracted_data = another_matrix(loc);
I suggest you read about Matrix indexing in MATLAB.
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Gareth Evans
Gareth Evans le 6 Mar 2015
Thanks Andrew.

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