[R] save a data frame in environment

[arnaud Gaboury]

If I add these 2 lines in my function :

Return(PositionFut)
Return(PositionLme)

Then, once the function is ran, when I do a ls(), I still don't see these 2
objects.

> -----Original Message-----
> From: Uwe Ligges [mailto:ligges at statistik.tu-dortmund.de]
> Sent: Tuesday, April 27, 2010 11:44 AM
> To: arnaud Gaboury
> Cc: r-help at r-project.org
> Subject: Re: [R] save a data frame in environment
> 
> Don't print them but return() them from your function position() within
> a list. Then you will have a list of two data.frames for later usage
> assigned to your list.
> 
> 
> Uwe Ligges
> 
> 
> On 27.04.2010 11:37, arnaud Gaboury wrote:
> > Dear group,
> >
> >
> >
> > Here is my function :
> >
> >
> >
> >
> >
> >
> >
> > position<-function(x)
> >
> > {
> >
> >
> >
> >
> > pose<-
> read.csv2((paste(c("LSCPos",x,".csv"),collapse="")),dec=".",sep=",",as
> > .is=T,h=T,skip=1)[,c(4,8,14,15)]
> >
> >    pose$CREATED.DATE<-as.Date(pose$CREATED.DATE,"%d/%m/%y")
> >
> >    futures<-pose[-grep("USD",pose[,1]),]
> >
> >
> >    colnames(futures)<-
> c("CONTRAT","CREATED.DATE","QUANTITY","SETTLEMENT")
> >
> >    lme<-pose[grep("USD",pose[,1]),]
> >
> >    lme$DESCRIPTION<- gsub(" *(\\d+/\\d+/\\d+) *$", "",
> lme$DESCRIPTION)
> >
> >    library(plyr)
> >
> >    PositionFut<-ddply(futures, c("CONTRAT","SETTLEMENT"), summarise,
> > POSITION=sum(QUANTITY))[,c(1,3,2)]
> >
> >    PositionLme<-unique(ddply(lme, c("DESCRIPTION"), summarise,
> >
> POSITION=sum(QUANITY),DATE=max(CREATED.DATE),SETTLEMENT=CLOSING.PRICE[C
> REATE
> > D.DATE == max(CREATED.DATE)]))[,-3]
> >
> >
> >
> >
> >
> >    print(PositionFut)
> >
> >    print(PositionLme)
> >
> >
> >
> > }
> >
> >
> >
> > As I'm totally new to this kind of sport, i.e. writing code, the code
> is
> > maybe ugly, but it does work. Now, one thing is missing.
> >
> >   I want to have the 2 Dataframes "PositionFut"&  "PositionLme" in my
> > environment, as I will need them later for another function. If I do
> a
> > save(), it will be saved in my directory, but won't see it when I do
> ls(),
> > even if I do a get() before. What is the process to save these 2
> objects in
> > order to access them later in another function?
> >
> >
> >
> >
> >
> > ***************************
> >
> > Arnaud Gaboury
> >
> > Mobile: +41 79 392 79 56
> >
> > BBM: 255B488F
> >
> > ***************************
> >
> >
> >
> >
> > 	[[alternative HTML version deleted]]
> >
> > ______________________________________________
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> guide.html
> > and provide commented, minimal, self-contained, reproducible code.