Thanks a lot Peter! One more help, is there a similar function abline() for
barchart().
I'm trying to add a (light gray colored) horizontal lines, one for each
y-value.
Peng
On Thu, Nov 26, 2009 at 5:59 PM, Peter Ehlers <ehl...@ucalgary.ca> wrote:
> Peng Cai wrote:
>
>> Hi Peter,
>>
>> I'm not sure but it seems "scales" command works only with integer values.
>>
>> If the y-axis values are very small (such as -0.03, -0.02, -0.01, 0,
>> 0.01,..., 0.08). My current plot has values 0, 0.05, and 0.10 only. But I
>> need it to extend it to negative numbers and reduce the scale width (like
>> -0.04, -0.02, 0, 0.02,...).
>>
>> Can I change these too? Thanks!
>>
>
> Use, e.g.
>
> myYscale <- seq(-0.04, 0.08, 0.02)
> barchart(...,
> ...,
> scales = list(y = list(at = myYscale)),
> ...
> )
>
> -Peter Ehlers
>
>
>
>> Peng
>>
>> On Thu, Nov 26, 2009 at 3:18 PM, Peter Ehlers <ehl...@ucalgary.ca> wrote:
>>
>>
>>> Peng Cai wrote:
>>>
>>> Hi R Users,
>>>>
>>>> I'm trying to plot a stacked barplot. Here is data:
>>>>
>>>> Sample Col1 Col2 Col3
>>>> Row1 -2 4 -1
>>>> Row2 3 -2 4
>>>> Row3 3 5 -2
>>>> Row4 4 1 -1
>>>>
>>>> I'm using following R code:
>>>>
>>>> library(lattice)
>>>> dta<-read.table("data.txt", header=TRUE, row.names="Sample")
>>>> barchart(data.matrix(dta),
>>>> horizontal=FALSE,
>>>> stack=TRUE,
>>>> col=2:4,
>>>> auto.key=list(space="right",
>>>> title=names(dimnames(dta))[2])
>>>> )
>>>>
>>>> Above code is working fine, but I need help with:
>>>>
>>>> 1) Legend boxes have default colors, whereas I'm looking them to match
>>>> with
>>>> barplot colors (col=2:4).
>>>>
>>>> replace the line
>>>
>>> col = 2:4,
>>>
>>> with
>>>
>>> par.settings = simpleTheme(col = 2:4),
>>>
>>>
>>> 2) Can I increase scale for y axis, like currently it plotting
>>>
>>>> -2,0,2,4,...
>>>> I would like it as -2,-1,0,1,...
>>>>
>>>> add the line
>>>
>>> scales = list(y = list(at = -2:8)),
>>>
>>> or whatever tick locations you prefer.
>>>
>>> -Peter Ehlers
>>>
>>>
>>> Any help would be greatly appreciated,
>>>>
>>>> Thanks,
>>>> Peng
>>>>
>>>> [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-help@r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide
>>>> http://www.R-project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>>
>>>>
>>>>
>>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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