Silly me, worked it out after a while.
Basically as pls has been added to R as a Library I needed to add the
following to my rpy based script to call pls functions...
r.library("pls")
To allow me to access the commands
Hope that helps someone in the future.
Chris
> Hi
>
> I'm new to RPy and I've hit a problem trying to run the PLS module from R
> through python.
>
> I have installed the PLS module in R and that seems to work fine. But when
> i try to run
>
> I get the following type of error...
>
> Traceback (most recent call last):
> File "pls.py", line 15, in <module>
> kernelpls = r.mvr(data["x1"], data["y1"], 1, validation="CV",
> method="kernelPLS")
> File "/usr/lib64/python2.5/site-packages/rpy.py", line 314, in
> __getattr__
> return self.__getitem__(name)
> File "/usr/lib64/python2.5/site-packages/rpy.py", line 318, in
> __getitem__
> obj = self.__dict__[name] = self.__dict__.get(name, self.get(name))
> rpy.RPy_RException: Error in function (x, pos = -1, envir =
> as.environment(pos), mode = "any", :
> variable "mvr" was not found
>
> Can anyone explain to me how I get round the variable not found error.
>
> Thanks in advance
>
> Chris
>
>
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