[R] customise tick marks

roslinazairimah zakaria ro@||n@ump @end|ng |rom gm@||@com
Thu Sep 13 09:00:39 CEST 2018


Hi Jim,
It works beautifully.

Thank you very much for your help.


On Wed, Sep 12, 2018 at 5:58 PM Jim Lemon <drjimlemon using gmail.com> wrote:

> Hi Roslinazairimah,
> You seem to be using the dotplot function from the lattice package. If so:
>
> dotplot(cyl ~ mpg, data = mtcars, groups = cyl, cex=1.2,
>  scales=list(y=list(labels=sort(unique(mtcars$cyl)))),
>  main="Gas Milage for Car Models",  xlab="Miles Per Gallon")
>
> Jim
> On Wed, Sep 12, 2018 at 4:21 PM roslinazairimah zakaria
> <roslinaump using gmail.com> wrote:
> >
> > Dear r-users,
> >
> > I want to draw dotplot for mtcars data according to cyl. There are three
> > types of cylinder 4,6,8. However when we draw it does not use 4,6,8
> instead
> > label it as 1,2,3.
> >
> > I have this code and would like to customise the tick mark according to
> cyl
> > groups:
> >
> >
> > dotplot(cyl ~ mpg, data = mtcars, groups = cyl, cex=1.2,axes=FALSE,
> >   main="Gas Milage for Car Models",  xlab="Miles Per Gallon")
> > ticks = c(1,2,3)
> > axis(2, at = ticks, labels=c(4,6,8))
> >
> > I got this message:
> >
> > axis(2, at = ticks, labels=c(4,6,8))
> > Error in axis(2, at = ticks, labels = c(4, 6, 8)) :
> >   plot.new has not been called yet
> >
> > Thank you so much for any help given.
> > --
> > *Roslinazairimah Zakaria*
> > *Tel: +609-5492370; Fax. No.+609-5492766*
> >
> > *Email: roslinazairimah using ump.edu.my <roslinazairimah using ump.edu.my>;
> > roslinaump using gmail.com <roslinaump using gmail.com>*
> > Faculty of Industrial Sciences & Technology
> > University Malaysia Pahang
> > Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia
> >
> >         [[alternative HTML version deleted]]
> >
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> > and provide commented, minimal, self-contained, reproducible code.
>


-- 
*Roslinazairimah Zakaria*
*Tel: +609-5492370; Fax. No.+609-5492766*

*Email: roslinazairimah using ump.edu.my <roslinazairimah using ump.edu.my>;
roslinaump using gmail.com <roslinaump using gmail.com>*
Faculty of Industrial Sciences & Technology
University Malaysia Pahang
Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia

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