Displaying 2 results from an estimated 2 matches for "resp0".
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esp0
2002 May 02
2
a question
Hi,
I have a program written in R which is good on the version 1.2, but for
the fallowing versions of R, an error always is at the same place.
That is at the level of the fallowing line:
Sur<-
getInitial(res2[m:M,2]~SSasymp(res2[m:M,1],Asymp,resp0,lrc),data=res2)
Error in eval(expr,envir,enclos):numeric envir arg not of length one
I don't know at all this langage for the instant.
Thanks,
Christelle
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NetCourrier, votre bureau virtuel sur Internet : Mail, Agenda, Clubs, T...
2012 Sep 27
3
problem with nls starting values
...tarting functions (SSlogis and SSasymp) like this:
dframe<-data.frame(cbind(slopes,quantiles))
names(dframe)<-c("slopes","quantiles")
summary(mod1<-nls(slopes ~ SSlogis( quantiles, Asym, xmid,
scal),data=dframe))
summary(mod1<-nls(slopes ~ SSasymp( quantiles, Asym, resp0,
lrc),data=dframe))
and I tried to specify the starting values myself. But I usually don't
even get the nls started. It's always some singular gradient error or
some other related error message (stopped after 50 iterations,etc.).
When I leave out some values from the middle quantiles I...