On Mar 24, 2011, at 1:15 PM, jessiecy2001 wrote:
Hi all,
I am a new user for R.
I faced a questions about subscript out of bounds.
Although I checked some other helps before I sent this email, I
still don't know
how to deal with this problems.
I want to use "domain" function to run species distribution model in
R.
I used "sp.occ.do<-domain(env.pre, pred_train,
factors=c('continent')) &
sp.occ.pre.pro<-predict(env.pre, sp.occ.do)" to predict species
distribution.
That seems an odd way to use predict(). Generally the first argument
to predict is a fit object. I'm assuming that `domain` returns some
sort of model. Is that true? And where did `env.pre` come from? Also
you should copy code directly, and not throw in extra quotes and
ampersands since they are valid R operators.
BUT, I got "Error in domdist(object, ln[j], vals[, ln[j]]) :
subscript out of
bounds" and could not run the domain model.
How can I solve this problem?
Well, you could offer the package from which these functions are being
used. The `domain` function is NOT part of base R:
> ?domain
No documentation for 'domain' in specified packages and libraries:
you could try '??domain'
And you should offer a test dataset or point to where one might be
found.
--
David Winsemius, MD
West Hartford, CT
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