On 2011-04-17 16:29, jim holtman wrote:
Will one of these do it for you:

str(x)
'data.frame':   550 obs. of  5 variables:
  $ year    : Factor w/ 2 levels "one","two": 1 1 1 1 1 1 1 1 1 1 ...
  $ size    : Factor w/ 2 levels "large","small": 2 2 2 2 2 2 2 2 2 2 ...
  $ distance: num  30.9 121.5 46.1 46.1 46.1 ...
  $ taken   : int  10 2 12 1 4 1 10 3 5 5 ...
  $ mass    : num  13.88 2.78 16.65 1.39 5.55 ...
require(lattice)
histogram(~taken|year, x)
histogram(~taken|year*size, x)


Jeff,

I would use lattice (or ggplot2) as well. But you
may want to look at the histbackback() function in
pkg Hmisc.

Peter Ehlers

[...snip...]



On Sun, Apr 17, 2011 at 10:51 AM, Stratford, Jeffrey
<jeffrey.stratf...@wilkes.edu>  wrote:
Hi everyone,



I'm looking to produce a side-by-side histogram of the number of trips
taken by jays with a particular number of acorns after accounting for
year (year "one" and year "two"). I know this involves indexing first
then creating a histogram but I'm not sure how I'd do this. I want to
explore the possibilities that jays are altering their strategies in
different years.  Data are below.



This is a common need for myself so any help would be greatly
appreciated!



Thanks,



Jeff


[...snip...]

--
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?

______________________________________________
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.

Reply via email to