Dear all,
With reference to the optim R documentation, parscale definition seems to say
that if e.g. �f(x+1,y) - f(x,y)� and �f(x,y+1) - f(x,y)� are not of comparable
magnitude
then we should set the parscale argument.
But then I was wondering why parscale is set to 20 in the "wild" function
example. This function has only one parameter and if we set parscale equal to 1
then the solution near the global minimum is not found.
Many thanks in advance to all of you and kind regards,
Tom
__________________________________________________
[[alternative HTML version deleted]]
______________________________________________
[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
