[R] Question about curve fitting...

From: Dan Bolser <dmb_at_mrc-dunn.cam.ac.uk>
Date: Wed 10 Aug 2005 - 19:41:49 EST

Meta:
This question is somewhat long and has two parts, I would be very happy for someone just to nudge me in the right direction with the manual / tutorial, as I am somewhat lost...

  1. How do I fit a curve of the form "y = k1 * x^k2" ?

I want to estimate values of k1 and k2 given the x/y data I have, and I can't work out how to get R to calculate and return their estimates.

2) Given the value of k1 and k2 for population A, how can I test if population B has significantly different values of k1 and k2?

Sorry for the basic question. I think I just need to read up on a few functions.

I have about 50 xy pairs in total if that makes a difference.

Dan.



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Wed Aug 10 19:46:17 2005

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