RE: [R] Problem with bwplot

From: Liaw, Andy <andy_liaw_at_merck.com>
Date: Sat 10 Jul 2004 - 03:14:31 EST


> From: Ernesto Jardim
>
> Yes,
>
> It works.
>
> Thanks
>
> EJ
>
> PS: It's inconsistent with boxplot, which works without making vec2 a
> factor.

I think the problem is in the flexibility of bwplot. If `horizontal' is not set explicitly, it tries to guess by testing whether `y' or `x' is factor. It probably should throw either an error or at least a warning if not one and only one of them is factor.

Andy  

> On Fri, 2004-07-09 at 17:36, Austin, Matt wrote:
> > Try factor(vec2) in your bwplot() call.
> >
> > From: r-help-bounces@stat.math.ethz.ch
> > [mailto:r-help-bounces@stat.math.ethz.ch]On Behalf Of Ernesto Jardim
> >
> > Hi,
> >
> > I'm ploting some box-and-whisker plots with bwplot but I'm
> not getting
> > any box-and-whiskers ... just dots.
> >
> > I'm using lattice 0.9-16 with R 1.9.1.
> >
> > Try
> >
> > library(lattice)
> > rnorm(60)->vec1
> > rep(1:3,20)->vec2
> > rep(LETTERS[1:2],30)->vec3
> > bwplot(vec1~vec2|vec3)
> >
> > Thanks
> >
> > EJ



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