[R-SIG-Finance] about quantmod and shaded region
Olivier.Martin at avignon.inra.fr
Tue Aug 7 18:22:28 CEST 2012
I am a new user of quantmod package (version 0.3-8) and I have some
I would like to add shaded regions to a chart.
1. I tried the following commands (from slide presentation of Jeff Ryan)
addTA(RSI(Cl(CAC))>40 & RSI(Cl(CAC))<50 ,col="red",border=NA,on=-1)
So the first region RSI(Cl(CAC))>50 is correctly shaded, but the second
RSI(Cl(CAC))>40 & RSI(Cl(CAC))<50 isn't. So I supposed a bug with
with addTA() ?
2. On the web, I found a mail from Jeff Ryan and he proposed to use the
>times <- timeBasedSeq(20071001/2007) # create a Date sequence from 2007-10-01 to 2007-12-31
>addTA(xts(rep(TRUE,length(times)), times), on=-1, col="#333333", border=NA)
Nevertheless, this command gives me an error concerning the function rect().
3. I also tried to use the function newAT() without success.. :-(
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