[R] Help with time in R

[jim holtman]

> # depends on what you want to do with it.
> # if you just want to convert to seconds, use the following
> x <- c('12:23.45', '34:15.1', '1:34.23')
> # split by the ":"
> x.s <- strsplit(x, ":")
> # convert
> x.c <- sapply(x.s, function(a){
+     as.numeric(a[1]) * 60 + as.numeric(a[2])
+ })
>
>
> x.c
[1]  743.45 2055.10   94.23
>


On Tue, Jul 20, 2010 at 7:33 AM, Sarah Chisholm
<sarah.chisholm.09 at ucl.ac.uk> wrote:
> Hi,
>
> I have a problem with the time formatting in R. I have entered time in the format "MM:SS.xyz" and R has automatically classified this as a factor, but I need it numerically. However when I use as.numeric() it gives me totally different numbers. Is there any way I can tell R to read thes input as a number?
>
> Thank you very much
>
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>
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-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?