Hello,
I don't know if this is what you want, but your formula is equivalent to
nlstest=nls(Cfl~K*ifelse(Pw > z, 1, exp(-a*Tsoil))*exp(-b*Pw)+c
,start=c(K=5.5, a=0.1, b=0.1, c=2, z=5))
Hope this helps,
Rui Barradas
--
View this message in context:
http://r.789695.n4.nabble.com/nls-and-if-statements-tp4630391p4630398.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
