[R-pkg-devel] Unexpected symbol when checking package examples

[Duncan Murdoch]

On 11/11/2018 6:53 PM, Duncan Murdoch wrote:
> On 11/11/2018 3:39 PM, Jared Knowles wrote:
>> Hi!
>>
>> I have a bit of a weird issue when I'm trying to check my package merTools
>> (source repo available here: https://github.com/jknowles/merTools
>>
>> On Windows and Linux builds for R-release and R-devel, when R CMD CHECK
>> checks examples, it returns the following error below:
>>
>> Warning: parse error in file 'merTools-Ex.R':
>> 1: unexpected symbol
>> 117: cleanEx()
>> 118: nameEx
> 
> I also get this error on MacOS.
> 
>>
>>
>> Upon inspecting the example file generated by R CMD CHECK (mertools-Ex.R) -
>> it contains only valid R code. I can run it line by line or source the
>> whole file in R without any errors. But, during the check process, this
>> error occurs.
> 
> The problem is in the REimpact help file.  It contains this:
> 
> zed3 <- REimpact(g1, newdata = InstEval[9:12, ], groupFctr = "d", breaks
> = 5,
> 
> and there's no closing paren.
> 
> This is in a \donttest section of the examples, so it gets deleted when
> running the examples, and that's the version of merTools-Ex.R that is
> left at the end.  But the warning happened in a different test,
> 
> * checking for unstated dependencies in examples ... WARNING
> Warning: parse error in file 'merTools-Ex.R':
> 1: unexpected symbol
> 118: cleanEx()
> 119: nameEx
>        ^
> 
> and it is based on a different version of that file that doesn't omit
> the \donttest section.
> 
> This is arguably an R bug:  the line numbers are misleading, since they
> refer to a version of the file that no longer exists.  Perhaps when you
> say \donttest, no tests should be done.

Cancel that last sentence:  if you run "example(REimpact)", you get a 
syntax error message, because \donttest is not the same as \dontrun.  So 
this has to be fixed in the original file.

But the first part is still right:  you shouldn't say the problem is on 
line 119 of 'merTools-Ex.R', and then rewrite the file so that line 
isn't there any more.

Duncan Murdoch

> 
> Duncan Murdoch
> 
> 
> 
>> The functions cleanEx() and nameEx() appear to be created as part of the
>> checking process.
>>
>> I have not changed the examples in the code since the last time I ran R CMD
>> CHECK so I am quite confident that the example code for all functions is
>> valid R code.
>>
>> Any ideas on what might be the source of this problem?
>>
>>                  Thanks!
>>                    Jared
>>
>>
>>
>> Jared Knowles
>> President, Civilytics Consulting LLC
>> www.jaredknowles.com
>>
>> 	[[alternative HTML version deleted]]
>>
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>