[R] strange warning message

Tong Wang wangtong at usc.edu
Sun Sep 24 01:15:25 CEST 2006

Hi Everyone,
    I recently start to get this warning message,  while loading files in to R.   Could someone tell me what does it mean ?
I am using R 2.3.0 with Emacs on WinXP.

    use of NULL environment is deprecated 

Thanks a lot for any help


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