Hi
> -----Original Message-----
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of arun
> Sent: Tuesday, January 08, 2013 3:30 PM
> To: Elaine Kuo
> Cc: R help
> Subject: Re: [R] error in a abline loop
>
> HI Elaine,
>
> In the data you sent to me, it had 5 levels for skin_color.
> data1<-read.csv("skin_color.csv",sep="\t")
> data1$skin_color<-factor(data1$skin_color)
> levels(data1$skin_color)
> #[1] "1" "2" "3" "4" "5"
>
>
> mypath<-
> file.path("/home/arun/Trial1",paste("Elaine_",1:5,".jpg",sep=""))
> #change the file.path according to your system
Instead of multiple files you can create multipage pdf
pdf("myfile.pdf")
for(i in 1:5){
#> jpeg(file=mypath[i])
plot(body_weight~body_length,data=data1[data1$skin_color==i,])
line<-lm(body_weight~body_length,data=data1[data1$skin_color==i,])
abline(line,col=c("yellow","blue","green","orange","red")[i],lwd=2)
}
dev.off()
see ?pdf for details
Regards
Petr
#> }
>
> #or
>
> lapply(seq_along(mypath),function(i) {jpeg(file=mypath[i])
> line<-
> lm(body_weight~body_length,data=data1[data1$skin_color==i,])
>
> plot(body_weight~body_length,data=data1[data1$skin_color==i,])
>
> abline(line,col=c("yellow","blue","green","orange","red")[i],lwd=2)
> dev.off()
> })
>
>
> A.K.
>
>
>
>
> ----- Original Message -----
> From: Elaine Kuo <elaine.kuo...@gmail.com>
> To: arun <smartpink...@yahoo.com>
> Cc:
> Sent: Monday, January 7, 2013 9:48 PM
> Subject: Re: [R] error in a abline loop
>
> Hello arun
>
> Thank you always.
> Please kindly help the attached data for your reference.
>
> Elaine
>
>
> On Tue, Jan 8, 2013 at 10:00 AM, arun <smartpink...@yahoo.com> wrote:
> > HI,
> >
> > A possible guess ( with no data):
> > for (i in 1:7) {
> > subs <- data$skin_color==levels(data$skin_color)[i]
> > line<-lm(body_weight~body_length, data=subset(data, subset=subs),
> > abline(line,col=c("yellow","chocolate1","darkorange2",
> > "red3","saddlebrown","coral4","grey38")[i],lwd=2) ) #closing
> >parenthesis for lm( was missing
> > }
> >
> >
> > A.K.
> >
> >
> >
> > ----- Original Message -----
> > From: Elaine Kuo <elaine.kuo...@gmail.com>
> > To: r-help@r-project.org
> > Cc:
> > Sent: Monday, January 7, 2013 8:23 PM
> > Subject: [R] error in a abline loop
> >
> > Hello
> >
> > I have data of body length and body weight of people of different
> skin colors.
> >
> > I tried to write a code to plot body length and body weight according
> > to the skin colors.
> > (Thanks for Petr's advice so far.)
> >
> > A loop is used but an error shows up in the following code.
> > It says:
> > unexpected '}' in
> > "
> >"red3","red3","saddlebrown","coral4","chocolate4","darkblue","navy","g
> r
> >ey38")[i],lwd=2)
> > }"
> >
> > Please kindly advise how to modify the code.
> > Thank you.
> >
> > The code
> > data <-read.csv("H:/skincolor.csv",header=T)
> >
> > # graph
> > par(mai=c(1.03,1.03,0.4,0.4))
> >
> > plot(data$body_weight, data$body_length,
> > xaxp=c(0,200,4),
> > yaxp=c(0,200,4),
> > type="p",
> > pch=1,lwd=1.0,
> > cex.lab=1.4, cex.axis=1.2,
> > font.axis=2,
> > cex=1.5,
> > las=1,
> > bty="l",col=c("yellow","chocolate1","darkorange2",
> > "red3","saddlebrown","coral4","grey38")[as.numeric(data$skin_color)])
> >
> >
> >
> >#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~
> >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > ##
> > for (i in 1:7) {
> > subs <- data$skin_color==levels(data$skin_color)[i]
> > line<-lm(body_weight~body_length, data=subset(data, subset=subs),
> > abline(line,col=c("yellow","chocolate1","darkorange2",
> > "red3","saddlebrown","coral4","grey38")[i],lwd=2)
> > }
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
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and provide commented, minimal, self-contained, reproducible code.
