[R] Vincentizing Reaction Time data in R

[Yisihn]

On Wed, 20 May 2015 18:13:17 +0800,
Hi Gabriel,

As far as I could recall, there isn't an R package that has explicitly implemented "vincentization". You definitively can find some code segments/functions that have implemented "vincentize" on the web. But you should verify if they do exactly what you wish to do.  If you could look at the question from percentile/quantle perspective, it would not take you too much time to realise that they are similar.  I would suggest you to read, as John Kane suggested, Prof. Ratcliff's 1979 paper.  Another paper that may be very helpful is Prof van Zandt's 2000 RT paper.

However, you should be aware that there are some different implementation of "vincentization", and it is debatable, if not problematic, to use it, rather than other more general quantile methods. It would help you to understand not only how to do vincentization, but also why/why not if you could read papers from Jeff Rouder's as well as from Heathcote's and Brown's lab.

Sorry that I hesitate to give you the code, because this looks like part of your course works.  It would be more rewarding for you, if you could figure out by yourself.

Yishin


Gabriel WEINDEL wrote:
> 
> Dear all,
> 
> For my master thesis, I'm currently working in cognitive neuroscience
> on executive control through measurement of reaction time and I need
> to get my data 'vincentized' with an exclusive use of R set by my
> statistic teacher for a test purpose, for this reason I can't use the
> python code the lab team usually uses.
> Despite a dozen hours of research I couldn't find any package or
> R-code which would allow the use of vincentization, that's why I'm
> querying help on the R forum.
> 
> So has anyone ever used vincentization in R ?
> 
> Best regards,
> 
> -- 
> Gabriel Weindel
> Master student in Neuropsychology - Aix-Marseille University (France)
> 
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