search for: ndmtrbgm2

Displaying 1 result from an estimated 1 matches for "ndmtrbgm2".

2011 Apr 29
1
Analysis and graphics by groups
...I'm trying to do analysis and graphics using a factor as a criteria to split data and do the analysis/graphics for each subset of data. Right now what I'm trying to do is to fit and plot the following logistic model, according to a third variable named "Cerca": dm_fit_T<-nls(nDMTRBgm2~(K/(1+((K-nDMTRBgm2.T.1)/nDMTRBgm2.T.1)*exp(-r))),perieph,start=list(K=3,r=0.2),trace=T) I've found a function called gapply which seems to be what I need, but it doesn't seem to work. This is the argument I've used: gapply(perieph,FUN=nls(nDMTRBgm2~(K/(1+((K-nDMTRBgm2.T.1)/nDMTRBgm2.T...