On Mon, Dec 12, 2011 at 3:18 PM, Marko Limbek <marko.lim...@valicon.net> wrote:
> Thank you Peter, but with me it doesn't work,
> as you can see from the printscreen in the attachment, that I send you.
> I followed all four steps.
> The warning in the picture says that variable resmca is not used.
>
> Marko
You had this:
set_default_mode(NO_CONVERSION)
nv = r.data_frame(...)
resmca = r.MAC(nv, ...)
set_default_mode(BASIC_CONVERSION)
c = r("resmca$var")
which gave an exception: object 'resmca' not found.
That is trying to tell you the object/variable 'resmca' does
not exist in R. And it doesn't because you created it in
Python instead. I think there is a way to assign variables
in rpy but the syntax escapes me right now. What you
can do (and it is NOT elegant) is just embed the R code
as a long string for rpy to execute:
set_default_mode(NO_CONVERSION)
r("""
nv <- data.frame(...)
resmca <- MAC(nv, ...)
""")
set_default_mode(BASIC_CONVERSION)
c = r("resmca$var")
However, backtracking for a moment, what went
wrong doing it the "proper" way though?
http://rpy.sourceforge.net/rpy/doc/rpy_html/R-objects-look-up.html#R-objects-look-up
Did you try this:
set_default_mode(NO_CONVERSION)
nv = r.data_frame(...)
resmca = r.MAC(nv, ...)
set_default_mode(BASIC_CONVERSION)
resmca.var__ #guess from memory
Also try:
print dir(resmca)
Peter
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