[R] Checking a (new) package - examples require other package functions

Duncan Murdoch murdoch at stats.uwo.ca
Thu May 14 12:57:21 CEST 2009

On 13/05/2009 2:38 PM, Rebecca Sela wrote:
> I am creating an R package.  I ran R CMD check on the package, and everything passed until it tried to run the examples.  Then, the result was:
> * checking examples ... ERROR
> Running examples in REEMtree-Ex.R failed.
> The error most likely occurred in:
>> ### * AutoCorrelationLRtest
>> flush(stderr()); flush(stdout())
>> ### Name: AutoCorrelationLRtest
>> ### Title: Test for autocorrelation in the residuals of a RE-EM tree
>> ### Aliases: AutoCorrelationLRtest
>> ### Keywords: htest tree models
>> ### ** Examples
>> # Estimation without autocorrelation
>> simpleEMresult<-RandomEffectsTree(Y~D+t+X, data=simpleREEMdata, random=~1|ID, simpleREEMdata$ID)
> Error: couldn't find function "RandomEffectsTree"
> Execution halted
> The function "RandomEffectsTree" is defined in the R code for the package.  How can I refer to other functions from the package in examples?  (I have the "Writing R-extensions" PDF, so it would be enough to point me to the right page, if the answer is in there and I just missed it.)

You should not need to do anything special to make package functions 
visible, as long as they would be visible to a normal user.  (Functions 
not exported in the NAMESPACE file won't be visible in the examples.)

Are you sure you have a function with that exact name?  It could be a 
typo somewhere, e.g. RandomEffectTree or RandomeffectsTree.

Duncan Murdoch

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