[R] Method 'EvaluateNoReturn' of object 'IStatConnector' failed
r_stuff_online at hotmail.com
Sat Jul 19 17:39:37 CEST 2003
I am using the R ActiveX component (v1.2). I have written a custom function
in R which returns a dataframe. I want to be able to retrieve the contents
of the returned dataframe in my application.
Here is a snippet of the code (line that throws exception). X has been
correctly declared and init'ed earlier on in the code.
x.EvaluateNoReturn("results_frame <- MyFunction()")
I was intending to then invoke the GetSymbol method to retrieve the contents
of results_frame into a local variable.
I notice that this still dosen't work if I try to use the Evaluate method to
directly assign the returned dataframe to my local variable.
My questions can thus be summarised as ff:
1). How do I call a custom function written in R, using the R ActiveX
2). How do I access a dataframe returned from a function call, using the R
ActiveX library. ?
3). Can I / How do I pass arguments into a function (including datframes)
using the R ActiveX library. ?
PS: I am relatively new to R, and I suspect that my function is not loaded
into R's memory space. When using R in the normal way (i.e. via GUI), I
initially used the source() command to load the function script. However, I
have saved it in the R workspace (default startup directory), and is thus
loaded everytime R is started. I am assuming the using the R ActiveX library
fires up R, which loads up the default workspace - but I may be doing
Any help will be greatly appreciated.
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