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!
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]]
>>
>> ______________________________________________
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>> 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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