R help - Apr 2011 - ggplot

Hello everyone,

I am using ggplot

to plot but I am getting the following error which I do not understand

Error: geom_text requires the following missing aesthetics: label


My code is
  dimx<-256

  library(ggplot2)
  dev.new()
  xandy<-expand.grid(seq(1:dimx),seq(1:dimy))
  xx<-data.frame(xandy[[1]],xandy[[2]],Powermap=Powermap)
  subsetxx<-subset(xx, xx$Powermap>threshold)
  
  ggplot( (subsetxx ) )+
 
geom_point(aes(x,y,colour=cut(Powermap,c(0,-1,-10,-20,-30,-40,-50,-60,-70,-80,-90,-100,-110))))+
  geom_text(aes(x,y,color=cut(Powermap,
c(0,-1,-10,-20,-30,-40,-50,-60,-70,-80,-90,-100,-110)),
label=round(Powermap,3)),vjust=1,legend=FALSE)+labs(colour="Powermap")+
  coord_cartesian(xlim = c(1, dimx),ylim = c(1, dimy))

Hi Alaios,
I don't see how the error message could be any clearer. You must
specify the labels for geom_text.

Best,
Ista

On Fri, Apr 22, 2011 at 7:27 AM, Alaios <alaios at yahoo.com>
wrote:
> Hello everyone,
>
> I am using ggplot
>
> to plot but I am getting the following error which I do not understand
>
> Error: geom_text requires the following missing aesthetics: label
>
>
> My code is
> ?dimx<-256
>
> ?library(ggplot2)
> ?dev.new()
> ?xandy<-expand.grid(seq(1:dimx),seq(1:dimy))
> ?xx<-data.frame(xandy[[1]],xandy[[2]],Powermap=Powermap)
> ?subsetxx<-subset(xx, xx$Powermap>threshold)
>
> ?ggplot( (subsetxx ) )+
>
?geom_point(aes(x,y,colour=cut(Powermap,c(0,-1,-10,-20,-30,-40,-50,-60,-70,-80,-90,-100,-110))))+
> ?geom_text(aes(x,y,color=cut(Powermap,
c(0,-1,-10,-20,-30,-40,-50,-60,-70,-80,-90,-100,-110)),
label=round(Powermap,3)),vjust=1,legend=FALSE)+labs(colour="Powermap")+
> ?coord_cartesian(xlim = c(1, dimx),ylim = c(1, dimy))
>
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>


-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org