[R] Extract psuedo model matrix from nls?

[Murray Jorgensen]

Hi R-list,

I'd like to extract the psuedo model matrix (derivative of fitted values 
wrt the parameters) from an nls object.

Any suggestions?

Thanks,

Murray Jorgensen


Dr Murray Jorgensen               on leave from:
Mathematics and Statistics       Department of Statistics
University of Victoria           University of Waikato
PO BOX 3045 STN CSC              Hamilton, New Zealand
Victoria, B.C.      Email: maj at waikato.ac.nz
Canada V8W 3P4      Phone: (250) 721-7460 wk  (250) 477 2581 home

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