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eyal
2007 Sep 05
2
question about non-linear least squares in R
Hi, everyone,
My question is: It's not every time that you can get a converged
result from the nls function. Is there any solution for me to get a
reasonable result? For example:
x <- c(-0.06,-0.04,-0.025,-0.015,-0.005,0.005,0.015,0.025,0.04,0.06)
y <-
c(1866760,1457870,1314960,1250560,1184850,1144920,1158850,1199910,1263850,1452520)
fitOup<- nls(y ~ constant + A*(x-MA)^4 +