Saanisto, Taija wrote:
> Hello all,
>
> I'm plotting several graphs with a for-loop with a code:
>
> par(mfrow=c(3,4))
>
> for(i in levels(fHCGB$code)) with(subset(fHCGB,code==i),
> plot(pooledPlateIntra, type="b", ylim=ylim, xlab=code, ylab="CV%"))
>
>
> With which I have no problems.. However I need to add lines to all of
> these 12 plots, but I cannot get it to work. I've tried for example
>
> par(mfrow=c(3,4))
>
> for(i in levels(fHCGB$code)) with(subset(fHCGB,code==i),
> plot(pooledPlateIntra, type="b", ylim=ylim, xlab=code, ylab="CV%")
> points(fHCGB$limitVarC,type="b", col="green")))
>
> But run into errors. How can the lines be added?
>
The with() construct gets a little more complicated if you want to do
more than one thing inside:
for(i in levels(fHCGB$code)) with(subset(fHCGB,code==i), {
plot(pooledPlateIntra, type="b", ylim=ylim, xlab=code, ylab="CV%")
points(fHCGB$limitVarC,type="b", col="green")
})
or, since with() is really only needed for the plot()
for(i in levels(fHCGB$code)) {
with(subset(fHCGB,code==i),
plot(pooledPlateIntra, type="b", ylim=ylim, xlab=code, ylab="CV%"))
points(fHCGB$limitVarC,type="b", col="green")
}
(& you might have used lines() rather than points() if you think of it as an
added line, but that's a matter of taste since the two functions only differ in
the default for type=.)
-p
> Taija Saanisto
> Biostatistician
> Quality assurance, Process Development
> PerkinElmer Life and Analytical Sciences / Wallac Oy
> Phone: +358-2-2678 741
>
>
>
>
> [[alternative HTML version deleted]]
>
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>
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