I have found the error in my script which was semi-automatically translated from the other person's MATLAB code.
The error is that c was assigned a value inside a function. That is the function body contained the following instructions c<-nw*czr d<-nw*cz rFren<-0.5*(abs((cz-c)/(cz+c))^2+abs((d-czr)/(d+czr))^2) firstguess<-c( 0,0,0,3,0.5, 0 , 0 , 0.000001) I have already run this function and obtained the results, it was rather long process, therefore I don't want to rerun it. I was not given any warnings. How did the interpreter treat this? Will the result change, if I change the variable from "c" to, say, "c." ? This variable is not used anywhere else in the function. -- View this message in context: http://www.nabble.com/Variable-c-and-function-c-tf4305781.html#a12256590 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@stat.math.ethz.ch 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.