how can i add 1-40,41-80, 81-120 and so on till 14000 datapoints which is in a text file?
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Ruby
il 13 Feb 2014
Modificato: Walter Roberson
il 15 Feb 2014
sir....i have a text file which consist of 14000 rows and 2 columns.... i have to add the 40 points each till 14000 data... means 1-40 , 41-80, 81-120 and so on... what should i do for that???
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Walter Roberson
il 13 Feb 2014
You have two columns, so
squeeze( sum( reshape(YourData, 40, [], 2) ) )
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Jos (10584)
il 13 Feb 2014
In cases when the total number of elements is not divisible by the size of the smaller groups, and reshape cannot be used, this trick with accumarray may be useful:
V = 1:10 ;
n = 3 ;
rem(numel(V),n) % :-(
ix = floor((0:numel(V)-1)/3) ;
R = accumarray(ix, V ,@sum)
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