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Averages/Arithmetic mean: Difference between revisions
→{{header|Haskell}}: ++ gnu octave
(→{{header|ALGOL 68}}: ++ awk) |
(→{{header|Haskell}}: ++ gnu octave) |
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Line 223:
colmeans = sum(b,2)/max(size(b,1),1) ! SUM elements in each column (dimension 2)
! dividing by the length of the column, which is the number of rows (SIZE of dimension 1)</lang>
=={{header|GNU Octave}}==
GNU Octave has a <tt>mean</tt> function (from statistics package), but it does not handle an empty vector; an implementation that allows that is:
<lang octave>function m = omean(l)
if ( numel(l) == 0 )
m = 0;
else
m = mean(l);
endif
endfunction
disp(omean([]));
disp(omean([1,2,3]));</lang>
=={{header|Haskell}}==
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