Re: [R] what characteristics of model curve do parameters denote

2011-08-18 Thread Jeff Newmiller
Please refer to the posting guide... This is not a mathematics tutoring list. Your question does not appear to be about R, so no one has responded. --- Jeff Newmiller The . . Go Live... DCN: Basics: ##.#. ##.#. Live Go

[R] what characteristics of model curve do parameters denote

2011-08-18 Thread Anna Gretschel
Dear list, I'm trying to fit a chapman-richards equation to my data, only I cannot interpret the parameters a, b and d. I know that the parameter b denotes the asymptote, but for the others I couldn't figure out. But I do need to know this in order to set my starting values. Here's the model: mod

[R] what characteristics of model curve do parameters denote

2011-08-18 Thread Anna Lee
Dear list, I'm trying to fit a chapman-richards equation to my data, only I cannot interpret the parameters a, b and d. I know that the parameter b denotes the asymptote, but for the others I couldn't figure out. But I do need to know this in order to set my starting values. Here's the model: mod