Awesome. Thats exactly what I want.

On Sat, May 22, 2010 at 12:45 AM, Erik Iverson <eriki@ccbr.umn.edu> wrote:

>
>  rajesh j wrote:
>>
>>> Hi,
>>>
>>> I wish to plot multiple histograms(representing different data so
>>> different
>>> range along xaxis but y axis is the same) horizontally in ggplot2. I'd
>>> like
>>> it to look like facets. Is this possible?
>>>
>>
>> Can you give a small example, say, using the diamonds dataset, or one of
>> your own?  What's wrong with:
>>
>>  data(diamonds)
>>  qplot(carat, data = diamonds,
>>        facets = color ~ .,
>>        geom = "histogram",
>>        binwidth = 0.1, xlim = c(0,3))
>>
>> which is Figure 2.16 in the ggplot2 book.  You can change this to be
>> horizontal.
>>
>> Unless you mean different variables completely, in which case you can
>> create your own grid viewports, or possibly use the reshape package along
>> with faceting.  Without a concrete example, it's hard to offer more help.
>>
>
> Here is a complete example of what I think you want, using the reshape
> package.
>
> library(reshape)
> library(ggplot2)
> tmp <- data.frame(v1 = rnorm(100),
>                  v2 = rnorm(100, 10))
>
> melted <- melt(data = tmp, measure.vars = c("v2", "v1"))
>
> qplot(value, data = melted, geom = "histogram") +
>    facet_wrap( ~ variable, scales = "free")
>



-- 
Rajesh.J

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