[R] About doing figures

[lily li]

Hi Jim,

For true color, I meant that the points in the figure do not correspond to
the values from the dataframe. Also, why to use rainbow(9) here? And the
legend is straight in the middle, is it possible to reformat it to the very
bottom? Thanks again.

On Sun, Jul 16, 2017 at 2:50 AM, Jim Lemon <drjimlemon at gmail.com> wrote:

> Hi lily,
> As I have no idea of what the "true record" is, I can only guess.
> Maybe this will help:
>
> # get some fairly distinct colors
> rainbow_colors<-rainbow(9)
> # this should sort the numbers in dfm$A
> dfm$Acolor<-factor(dfm$A)
> plot(dfm$B,dfm$C,pch=ifelse(dfm$DF==1,1,19),
>  col=rainbow_colors[as.numeric(dfm$Acolor)])
> legend("bottom",legend=sort(unique(dfm$A)),
>  fill=rainbow_colors)
> legend(25,35,c("DF=1","DF=2"),pch=c(1,19))
>
> Jim
>
>
> On Sun, Jul 16, 2017 at 3:43 PM, lily li <chocold12 at gmail.com> wrote:
> > Hi R users,
> >
> > I still have the problem about plotting. I wanted to put the datasets on
> > one figure, x-axis represents values B, y-axis represents values C, while
> > different colors label column A. Each record uses a circle on the figure,
> > while hollow circles represent DF=1 and solid circles represent DF=2. I
> put
> > my code below, but the A labels do not correspond to the true record, so
> I
> > don't know what is the problem. Thanks for your help.
> >
> > dfm
> > dfm1= subset(dfm, DF==1)
> > dfm2= subset(dfm, DF==2)
> > plot(c(15:30),seq(from=0,to=60,by=4),pch=19,col=NULL,xlab='Value
> > B',ylab='Value C')
> > Color = as.factor(dfm1$A)
> > colordist = grDevices::colors()[grep('gr(a|e)y', grDevices::colors(),
> > invert = T)] # for unique colors
> > Color.unq = sample(colordist,length(Color))
> >
> > points(dfm1[,3],dfm1[,4],col=Color.unq,pch=1)
> > points(dfm2[,3],dfm2[,4],col=Color.unq,pch=19)
> > legend('bottom',as.character(Color.unq),col=Color.unq,lwd=
> rep(2,length(Color.unq)),cex=.6,ncol=5)
> > legend('bottom',as.character(Color),col=Color.unq,lwd=3,
> cex=.6,ncol=5,text.width=c(9.55,9.6,9.55))
> >
> > dfm is the dataframe below.
> >
> > DF   A  B  C
> > 1     65 21 54
> > 1     66 23 55
> > 1     54 24 56
> > 1     44 23 53
> > 1     67 22 52
> > 1     66 21 50
> > 1     45 20 51
> > 1     56 19 57
> > 1     40 25 58
> > 1     39 24 53
> > 2     65 25 52
> > 2     66 20 50
> > 2     54 21 48
> > 2     44 30 49
> > 2     67 27 50
> > 2     66 20 30
> > 2     45 25 56
> > 2     56 14 51
> > 2     40 29 48
> > 2     39 29 23
> >
> >         [[alternative HTML version deleted]]
> >
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