[R] tkrplot Newbie

[Jonathan Daily]

According to documentation, tkrplot's fun parameter accepts a function
of no arguments. If you remove the arguments from your function, does
that kill the error message?

On Fri, Jun 3, 2011 at 11:42 AM, Costas Vorlow <costas.vorlow at gmail.com> wrote:
> Hello,
>
> I am trying to write a tcltk based program that plots/manipulates
> xts/xoo time series objects.
>
> I have the code I used from
>
> ## http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/tkrplot.html :
>
> ##
>
> require(quantmod)
> require(tcltk)
> library(tkrplot)
> Sys.setenv(TZ="GMT")
> getSymbols("^GSPC", from = "1960-01-01")
>
> Myhscale <- 2.5    # Horizontal scaling
> Myvscale <- 1.25    # Vertical scaling
>
> plotFunction <- function(x)
> {
>    params <- par(bg="white")
>      plot(x,main="A time series")
>    par(params)
> }
>
>
> tt <- tktoplevel()
> tkwm.title(tt,"Time Series")
> img <- tkrplot(tt,fun=plotFunction((Cl(GSPC))),hscale=Myhscale,vscale=Myvscale)
> tkgrid(img)
>
> ##
>
>
> Although the output looks fine, I get the following message:
>
> <Tcl>
>> img <- tkrplot(tt,fun=plotFunction((Cl(GSPC))),hscale=Myhscale,vscale=Myvscale)
> Error in try(fun()) : could not find function "fun"
>> tkgrid(img)
> <Tcl>
>
> Is this a serious problem with the code?
>
> Thanks in advance,
> Costas
>
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>



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===============================================
Jon Daily
Technician
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