To extract 10 values at equal interval from 170*390 table

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Shaheer Ansari 2020-9-23

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评论： Shaheer Ansari 2020-9-24

I am working on prediction methods and wish to extract only 10 sample from every row . The table consists of voltage parameters at various cycles. The number of total cycle is 168 with different length are assigned in column whereas voltage measured in row.

Regards

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Answer 1

Image Analyst 2020-9-24

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[rows, columns] = size(voltage) % Get size of voltage matrix.  Should be 170 rows by 390 columns
columns = round(linspace(1, columns, 10)) % Get 10 columns even spaced from 1 to the right column, rounded to integers of course in case they're not)
% Should be 1    44    87   131   174   217   260   304   347   390 -- that's 10 columns evenly spaced.
output = voltage(:, columns); % Extract only those 10 columns.  output is 170-by-10