Dear Lowie,
To use a function in R that you have saved in a file, you need to
source it in first (see ?source). Try this,
source(file="pathtoyourfile/P_Value.R") #or whatever your file is named exactly
Once you do that, you should be able to use your function. If you
always want it to load at startup, you can modify your Rprofile, I
believe. (see ?Rprofile)
Josh
On Sun, May 2, 2010 at 11:19 AM, A-A_lowie li <lowi...@gmail.com> wrote:
> Dear All:
>
> I create a file named :"P_Value" with only one simple function:
>
> P_Value <- function( Table ) {
> S = fisher.test(Table, alternative = "two.sided");
> return(S$p.value);
> }
>
> However, it seems that it's impossible to use this function
> directly, because no matter
> where I save this file, R always reports a missing function. For
> example,
>
> > M = matrix(c(25194,2783,307,20),2)
> > P_Value(M)
> Error: could not find function "P_Value"
>
> Sincerely thanks a lot for any suggestions.
>
> Lowie
>
> --
> Without dream, life is incomplete!
>
> [[alternative HTML version deleted]]
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Joshua Wiley
Senior in Psychology
University of California, Riverside
http://www.joshuawiley.com/
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