annotate general/cellutils/@cell/foldl.m @ 13:03694e5c8365
Reorganised some high order list functions to correct class-based method dispatch; fixed some docs.
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samer |
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Wed, 16 Jan 2013 12:12:34 +0000 |
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1 function X=foldl(fn,e,args)
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2 % foldl - Fold fom the left combinator
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3 %
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4 % This function applies an associative operator to cell array,
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5 % starting from the left using the given starting element.
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6 % eg fold(@plus,0,{1,2,3,4}) = ((((0+1)+2)+3)+4).
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7 %
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8 % foldl ::
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9 % (X,Y->X) ~'associative binary operator',
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10 % X ~'initial element',
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11 % {[N]->Y} ~'list (cell array) of arguments (at least 2 elements)'
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12 % -> X.
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13 X=e; for i=1:length(args), X=fn(X,args{i}); end
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