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lowerlist
2009 Feb 10
2
plotting the result of a nonlinear regression
...of the following for loop but I got an error message:
for (i in 1:length(formList))
{
resultList[[i]] <- nls(formList[[i]], data=subset(dati, Fiume=="Laveggio"), start=startList7[[i]],
nls.control(maxiter=1000, warnOnly=TRUE), algorithm='port', na.action=na.omit,lower=lowerList7[[i]],
upper=upperList7[[i]])
}
plotfit(resultList[[1]]
"Error in diff(as.numeric(y[ord])) :
(list) object cannot be coerced to type 'double'"
Could somebody tell me what this error means? how can I fix this problem?
Any suggestion appreciated!!
Thanks,
Laura