On Jun 29, 2011, at 2:31 PM, siriustar wrote:
Hi, dear R help
I am trying to use optim inside a for loop:
##For example. a: intial guess. b: result. f: function to be
minimized
for (i in 1:10) {
b[i] <- optim(a[i], f)}
However, some intial values cause error in optim function (e.g. "
system is
computationally singular..."). Then the for loop stops and won't try
the
following initial guesses.
If you want to work around errors, you need to catch them and provide
alternative:
?try
What can I do if I want the for loop procedure to finish all the
initial
guesses? I know this may be a stupid question.. but I am not familar
with R
optim. So thankyou very much for any help..
Sirius
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