[R-SIG-Finance] quantmod bug ?

Jeff Ryan jeff.a.ryan at gmail.com
Wed Aug 8 17:25:40 CEST 2012

Hi O,

I'll check and patch.  CRAN is in desperate need of a quantmod update
- and one is coming.  For now though, the change to watch for will be
on R-forge.


On Wed, Aug 8, 2012 at 10:05 AM, Olivier MARTIN
<Olivier.Martin at avignon.inra.fr> wrote:
> Hi all,
> I recently posted a problem concerning shaded regions with quantmod package.
> More precisely,
> I used the function addTA with a boolean vector: for example
> addTA(vecB,col="green",border=NA,on=-1)
> where vecB is the boolean vector.
> In some cases, the shading result was not conform
> with the boolean vector. I checked the R source  program, and more
> precisely the function chartTA() in TA.R file. So in the function
> chartTA, it seems that there is a mistake with the vector x.pos.
> the vector is given by
>  x.pos <- 1 + spacing * (1:length(x.range))
> and it seems that this vector should be
> x.pos <- 1:(spacing*x.range[2])
> So I hope this indication would be  relevant for people who work on
> the improvements of this package.
> Best regards.
> O.
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Jeffrey Ryan
jeffrey.ryan at lemnica.com


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