side by side histogram after splitting data by year
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.stratford at 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?
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