[R] error with source(): invalid 'times' value

jim holtman jholtman at gmail.com
Mon Jan 24 19:18:44 CET 2011


Do 'str(dep)' to see what dep is and where it comes from.  If you have
the 'options' set as I suggested, you can do this examination when the
error occurs.

On Mon, Jan 24, 2011 at 12:41 PM, Matthieu Stigler
<matthieu.stigler at gmail.com> wrote:
> ok, thanks Jim
>
> The problem comes from length(dep)<leading, so we get negative number...
>> length(dep)
> [1] 183
>
> c(leading, length(dep) - leading)
> [1]  516 -333
>
> But 183 seems to be the right number:
> $ wc -l /tmp/RFile.r
> 183 /tmp/RFile.r
>
> So now need to understand what is this "dep", and why it has a bigger
> length... tried to check source code (:-)) but could not get it... any idea?
>
> Thanks a lot
>
> Matthieu
>
>
> Le 24. 01. 11 18:29, jim holtman a écrit :
>>
>> It sounds like you have some invalid expressions.  Dump out the values
>> of 'leading' and 'length(dep) - leading'.  Learn some simple debugging
>> techniques.  One is to set
>>
>> options(error=utils::recover)
>>
>> so that on the error you can use the browser to examine what the values
>> are.
>>
>> On Mon, Jan 24, 2011 at 12:07 PM, Matthieu Stigler
>> <matthieu.stigler at gmail.com>  wrote:
>>>
>>> hi
>>>
>>> I am seeing a strange behavior I can't understand... doing:
>>>
>>>> source("/tmp/RFile.r",echo=TRUE)
>>>
>>> Error in rep.int(c(prompt.echo, continue.echo), c(leading, length(dep) -
>>>  :
>>>  invalid 'times' value
>>>>
>>>> traceback()
>>>
>>> 3: rep.int(c(prompt.echo, continue.echo), c(leading, length(dep) -
>>>       leading))
>>> 2: paste(rep.int(c(prompt.echo, continue.echo), c(leading, length(dep) -
>>>       leading)), dep, sep = "", collapse = "\n")
>>> 1: source("/tmp/RFile.r", echo = TRUE)
>>> But the file I am trying to source is very simple... see:
>>> $ more /tmp/RFile.r
>>> ###################################################
>>> ### chunk number 1:
>>> ###################################################
>>> #line 516 "VolStocksDec2010.Rnw"
>>> path<-"~/Dropbox/FAO/Papers/Volatility only"
>>> pathMarkov<-"~/Dropbox/FAO/Markov Model/"
>>> library(zoo)
>>>
>>> Any idea where it can come from? It works fine when echo=FALSE... I am
>>> using
>>> R 2.12, on Ubuntu Linux 10.4 (R from CRAN), full session info below.
>>> Should
>>> I rather send this to r-devel?
>>>
>>> Thanks a  lot
>>>
>>> Matthieu
>>>
>>>
>>> sessionInfo()
>>> R version 2.12.1 (2010-12-16)
>>> Platform: i486-pc-linux-gnu (32-bit)
>>>
>>> locale:
>>>  [1] LC_CTYPE=fr_CH.utf8       LC_NUMERIC=C
>>>  [3] LC_TIME=fr_CH.utf8        LC_COLLATE=fr_CH.utf8
>>>  [5] LC_MONETARY=C             LC_MESSAGES=en_US.UTF-8
>>>  [7] LC_PAPER=fr_CH.utf8       LC_NAME=C
>>>  [9] LC_ADDRESS=C              LC_TELEPHONE=C
>>> [11] LC_MEASUREMENT=fr_CH.utf8 LC_IDENTIFICATION=C
>>>
>>> attached base packages:
>>> [1] stats     graphics  grDevices datasets  utils     methods   base
>>>
>>> loaded via a namespace (and not attached):
>>> [1] grid_2.12.1         lattice_0.19-17     Matrix_0.999375-45
>>> [4] nnet_7.3-1          tsDyn_0.7-40        tseries_0.10-23
>>> [7] tseriesChaos_0.1-11
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>>
>
>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?



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