[R] Loop and cbind

[ONKELINX, Thierry]

A more elegant way to do this is

standard <- sapply(calm, function(calmi){calmi / sqrt(emaTA(calmi ^ 2,
0.03))})

Cheers,

Thierry
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be
www.inbo.be 

Do not put your faith in what statistics say until you have carefully
considered what they do not say.  ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainties, a surgery of suppositions. ~M.J.Moroney

 

> -----Oorspronkelijk bericht-----
> Van: r-help-bounces op stat.math.ethz.ch 
> [mailto:r-help-bounces op stat.math.ethz.ch] Namens john seers (IFR)
> Verzonden: woensdag 4 juli 2007 15:19
> Aan: livia; r-help op stat.math.ethz.ch
> Onderwerp: Re: [R] Loop and cbind
> 
> 
> 
> 
> Hi 
> 
> In what way does it not work?
> 
> My guess is that you have not declared your values outside 
> the for loop.
> As they are local they will be lost on exit.
> 
> You need to declare them before:
> 
> ewma<-vector(length=12)
> standard<-vector(length=12)
> 
> for ... {
> 	....
> }
> 
> John Seers
>  
> 
> 
>  
> ---
> 
> Hi, I would like to apply the following function for i 
> between 1 and 12, and then construct a list of the return series.
> 
> for (i in 1:12){
> ewma[i] <- emaTA(calm[[i]]^2,0.03)
> standard[i]<- calm[[i]]/sqrt(ewma[i])
> standard <- cbind(standard[i])
> }
> 
> But it does not work. Could anyone give me some advice how 
> can I achieve this? Many thanks
> --
> View this message in context:
> http://www.nabble.com/Loop-and-cbind-tf4024291.html#a11430500
> Sent from the R help mailing list archive at Nabble.com.
> 
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