Jianghong wrote:
> Hello,
>
> I have created two boxplots with following R code. There is one
outlier in
> B group.
> The outlier is 33. But the all other data are between 0 to 4.
>
> How can I skip y-axis around 5 to 25, and expand 0-4 for this case.
Also I
> want keep the outlier in my boxplot.
> I want my boxplot look like the second one, keep the outlier, and
make an
> interrupt of y-axis from 5 to 25.
>
> Thanks,
> Jianghong
>
>
> Example = c( 0.00,0.33,0.75,3.00,2.50,0.50,2.00,33.00)
> Grp_Example =c("A","A","A","B","B","B","B","B")
>
> Example_Data= cbind(Example,Grp_Example)
> attach(Example_Data)
>
>
> boxplot(Example ~ Grp_Example,main=paste("Boxplot of Example"),
> pars = list(boxwex = 0.25, staplewex = 0.25, outwex = 0.25))
>
> boxplot(Example ~ Grp_Example,main=paste("Boxplot of
Example"),ylim=c(0,4),
> pars = list(boxwex = 0.25, staplewex = 0.25, outwex = 0.25))
Try plotting in two regions of the same device. Quick and dirty
example:
par(mfrow=c(2,1))
boxplot(Example ~ Grp_Example,main=paste("Boxplot of Example"),
pars = list(boxwex = 0.25, staplewex = 0.25, outwex = 0.25),
ylim=c(25,35),xaxt="n")
boxplot(Example ~ Grp_Example,
pars = list(boxwex = 0.25, staplewex = 0.25, outwex = 0.25),
ylim=c(0,4))
See ?layout --instead of par(mfrow) -- and ?par for further
adjustments of region sizes and margins.
Helios
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