Message-ID: <eb555e660911180327u51b6e91bj8a0a95117201c1b3@mail.gmail.com>
Date: 2009-11-18T11:27:09Z
From: Deepayan Sarkar
Subject: Lattice plot
In-Reply-To: <775688.7210.qm@web57505.mail.re1.yahoo.com>
On Wed, Nov 18, 2009 at 4:14 AM, Tim Smith <tim_smith_666 at yahoo.com> wrote:
> Hi,
>
> I was trying to get a graph in lattice with the following data frame (7 rows, 5 cols):
> chr start1 end1 meth positive
> 1 ? 1 ? ? 10 ? 20 ?1.5 ? ? ? ?y
> 2 ? 2 ? ? 12 ? 18 -0.7 ? ? ? ?n
> 3 ? 3 ? ? 22 ? 34 ?2.0 ? ? ? ?y
> 4 ? 1 ? ? 35 ? 70 ?3.0 ? ? ? ?y
> 5 ? 1 ? ?120 ?140 -1.3 ? ? ? ?n
> 6 ? 1 ? ?180 ?190 ?0.2 ? ? ? ?y
> 7 ? 2 ? ?220 ?300 ?0.4 ? ? ? ?y
> I wanted the panels to be organized by 'chr' - which is ok. Further, I wanted the lines to be discontinuous. For example, in the first row, the x co-ordinate starts with a value of 10 (2nd column) and ends with a value of 20 (3rd column). The corresponding y value for this range of x values is 1.5 (4th column). Similarly, for the same panel (i.e chr=1), the fourth row would have x co-ordinate range from 35 to 70 with a y co-ordinate of 3.
You could do it with
library(latticeExtra)
segplot(meth ~ start1 + end1 | factor(chr), bar, type = "g")
but as Baptiste said, ggplot2 can do conditioning just as well.
-Deepayan
> If it were only one panel, a similar result could be achieved for the data x2:
>> x2
> ?chr start1 end1 meth positive
> 1 ? 1 ? ? 10 ? 20 ?1.5 ? ? ? ?y
> 4 ? 1 ? ? 35 ? 70 ?3.0 ? ? ? ?y
> 5 ? 1 ? ?120 ?140 -1.3 ? ? ? ?n
> 6 ? 1 ? ?180 ?190 ?0.2 ? ? ? ?y
>
>
> ## Code courtesy of BAPTISTE AUGUIE
> library(ggplot2)
> ggplot(data=x2) +
> ?geom_segment(aes(x=start1, xend=end1, y=meth, yend=meth))
> - Can I get lattice to do a similar graph for the panels?
> thanks!
>
>
>
> ? ? ? ?[[alternative HTML version deleted]]
>
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