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

William Dunlap wdunlap at tibco.com
Mon Jan 24 19:48:01 CET 2011


Put a space after the # in the line
#line 516
to avoid the problem.  A similar problem also
appears in parse().

  > parse(text="#line 102\nlog(pi)\n")
  Error in `Encoding<-`(`*tmp*`, value = character(0)) :
    'value' must be of positive length
  > parse(text="# line 102\nlog(pi)\n")
  expression(log(pi))
  attr(,"srcfile")
  <text>
  attr(,"wholeSrcref")
  # line 102
  log(pi)

(I'm still using 2.12.0.)

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com  

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of jim holtman
> Sent: Monday, January 24, 2011 10:19 AM
> To: Matthieu Stigler
> Cc: r-help at r-project.org
> Subject: Re: [R] error with source(): invalid 'times' value
> 
> 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?
> 
> ______________________________________________
> 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.
> 



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