Hi Folks,
I have run a linear regression analysis in R on some data for which
I also have a printout of a similar analysis carried out by someone else.
The results (intercept, coefficient, SEs etc.) differ somewhat, though
not greatly.
>From the printout of the other analysis, it seems that it may have
been produced by software called SigmaStat.
(I'm going by the clue
"Power of performed test with alpha = 0.0500: 1.000"
in the printout, which on a google search throws up a lot of SigmaStat
and sometimes SigmaPlot; the web pages illustrate tabulations by
SigmaStat which are very similar in layout to the printout I have)
I'm not familiar with SigmaStat. I'm a bit concerned by the numerical
discrepancies (and somewhat puzzled by the "1.000" power against an
unstated alternative!).
If any of you have experience with SigmaStat, especially in comparison
with R, I would be interested in your comments. If you would prefer to
email me off-list, please feel free to do so!
Best wishes to all,
Ted.
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E-Mail: (Ted Harding) <Ted.Harding at nessie.mcc.ac.uk>
Fax-to-email: +44 (0)870 167 1972
Date: 21-Feb-04 Time: 12:54:13
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