Sebastian Żurek wrote:
> Hi!
>
> I want to use rpy2 in my Python software to make a use of some custom
> R-scripts/functions.
>
> Is it possible, to call a custom R function with rpy2?
> For example, having the custom (taken from R tutorial) definition:
>
> twosam <- function(y1, y2) {
> n1 <- length(y1); n2 <- length(y2)
> yb1 <- mean(y1); yb2 <- mean(y2)
> s1 <- var(y1); s2 <- var(y2)
> s <- ((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
> tst <- (yb1 - yb2)/sqrt(s*(1/n1 + 1/n2))
> tst
> }
>
> how to call it with rpy2? I guess, there should be a R-packaged that
> contains it implemented and loaded?
>
> In python code, I want to use something like:
>
> twosam = robjects.r['twosam']
If you only want to access your function from Python, having making it
an anonymous R function might one way to go.
twosam = robjects.r('''
function(y1, y2) {
n1 <- length(y1); n2 <- length(y2)
yb1 <- mean(y1); yb2 <- mean(y2)
s1 <- var(y1); s2 <- var(y2)
s <- ((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
tst <- (yb1 - yb2)/sqrt(s*(1/n1 + 1/n2))
tst
}
''')
twosam(robjects.IntVector(range(10)),
robjects.IntVector(range(10)))
L.
>
> Thanks for *any* clues!
> Sebastian
>
> ------------------------------------------------------------------------------
> Are you an open source citizen? Join us for the Open Source Bridge conference!
> Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250.
> Need another reason to go? 24-hour hacker lounge. Register today!
> http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org
> _______________________________________________
> rpy-list mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/rpy-list
------------------------------------------------------------------------------
Are you an open source citizen? Join us for the Open Source Bridge conference!
Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250.
Need another reason to go? 24-hour hacker lounge. Register today!
http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org
_______________________________________________
rpy-list mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/rpy-list
