o.com
----
[R] Summarizing each row into a frequency table
Daren Tan darentan76 at gmail.com
Tue Mar 24 01:46:21 CET 2009
I have a matrix containing -1, 0, 1, however certain rows will not
have all 3 numbers. I have written some codes to compute the frequency
table of how
Try this (haven't checked the speed):
f <- function(x) table(factor(x, c(-1, 0, 1)))
100 * prop.table(t(apply(m, 1, f)), 1)
On Mon, Mar 23, 2009 at 8:46 PM, Daren Tan wrote:
> I have a matrix containing -1, 0, 1, however certain rows will not
> have all 3 numbers. I have written some codes to c
Of Daren Tan
> Sent: Tuesday, 24 March 2009 1:46 p.m.
> To: r-help@r-project.org
> Subject: [R] Summarizing each row into a frequency table
>
> I have a matrix containing -1, 0, 1, however certain rows
> will not have all 3 numbers. I have written some codes to
> compute t
I have a matrix containing -1, 0, 1, however certain rows will not
have all 3 numbers. I have written some codes to compute the frequency
table of how many -1s, 0s, 1s per row, but it is very ugly and not
efficient if there are more than 3 numbers. Please suggest.
m <- rbind(sample(0:1, replace=T,
4 matches
Mail list logo
