[R] Lattice plot

[baptiste auguie]

Hi,

ggplot2 can also split the graphs in different panels,

d=
read.table(textConnection(
"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"), head=T)

library(ggplot2)
ggplot(data=d) + facet_grid(.~chr) +
 geom_segment(aes(x=start1, xend=end1, y=meth, yend=meth))


HTH,

baptiste


2009/11/17 Tim Smith <tim_smith_666 at yahoo.com>:
> 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.
> 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]]
>
> ______________________________________________
> R-help at 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.
>