Creating Data frames from Tagged lists

[lgautier]

Original report by Anonymous.

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When I attempt to create an R Data frame from a tagged list, I obtain the following error:

Traceback (most recent call last):
File "<pyshell#51>", line 1, in
baseNameSpaceEnv["data.frame"]
NameError: name 'baseNameSpaceEnv' is not defined

[lgautier]

Original comment by Laurent Gautier (Bitbucket: lgautier, GitHub: lgautier).

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There might be a bug, but the details of what you are doing and what is the exact error message returned (with its traceback) are needed in order to assess whether this is really the case.

[lgautier]

Original comment by Anonymous.

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Here's what I did:

First I created a tagged list like so:

#!python

data = rlc.TaggedList([pHs, CSs], tags = ('x','y'))

where pHs and CSs are both python lists. Then I tried to create a data frame:

#!python

dataf = robjects.r.RDataFrame(data)

and received the following error message:

#!python

Traceback (most recent call last):
  File "<pyshell#36>", line 1, in <module>
    dataf = robjects.RDataFrame(data)
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/rpy2/robjects/__init__.py", line 372, in __init__
    df = baseNameSpaceEnv["data.frame"].rcall(tlist.items())
ValueError: All parameters must be of type Sexp_Type.