Displaying 2 results from an estimated 2 matches for "rowcumsums".
2009 Jul 30
1
rowSums, rowMean and rowCumSums?
Dear list,
Don't you think it could be useful to have in R base a function
rowCumSums, that compute cumulative sums for each row of a matrix?
My implementation of rowCumSums is
rowCumSums <- function(x) t(mapply(function(row)cumsum(x[row,]),
1:NROW(x)))
I'm sure it can be improved to have other arguments like na.rm or dims.
Is there any hope to have this function in R?...
2012 Nov 03
3
to print system.time always
Hi all;
I want to print system.time whenever I execute any command.
It takes too much time to type "system.time()" function to all command.
is there any solution on it?
And,
apply(matrix,1,cumsum) command is too slow to some large matrix.
is there any function like rowCumSums ?
thank u!
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