chartSeries() and addTA() from within an S4 method
Hi Lorenzo, add*** functions need to work 'magically' from the command line _and_ from within the chartSeries (or calls in general), so there is a check of where it is called from to determine _when_ it does the drawing. Simply change addTA(mktPositions) plot(addTA(mktPositions)), to cause the TA to be draw. HTH Jeff On Fri, Dec 12, 2008 at 12:07 PM, Lorenzo Bertolini
<sig.lorenzo.bertolini at googlemail.com> wrote:
Hello list,
wonder if anyone can help me out. I want to call chartSeries() and
subsequently addTA() from within an S4 method.
The chartSeries() works, but the addTA() does not....
setMethod("plot", "TradingSystem_FX", function(x){
..
..
# plot fx timeseries
x11()
fxSeries = as.quantmod.OHLC(seriesFX,col.names="Close")
chartSeries(fxSeries,theme="white",TA="addEMA(200,col=4)",name=seriesName)
#plot marketposition
addTA(mktPositions)
..
})
Thanks and have a nice WE,
Lorenzo Bertolini
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