On 05/14/2010 02:46 AM, Blue.Egg wrote:
...
I need to find out how can I on R, plot the mean egg of EGGS.H according to
the district, or sex.
Also how to compare the eggs of females on year of study x (in t.test)
Hi Blue.Egg,
You can always try barNest:
# first let's get more than one district
bluegg.df$DISTRICT<-factor(sample(c("PO","PQ"),25,TRUE))
barNest(EGGS.H~DISTRICT+SEX,data=bluegg.df,
ylab="Mean number of eggs",
barlabels=list("Overall",c("District PO","District PQ"),
c("Male","Female")),main="Blue.Egg\'s breakdown of eggs",
col=list("lightgray",c("green","orange"),c("pink","lightblue")))
and if you want nested bars, add showall=TRUE. For the t-test:
t.test(EGGS.H~SEX,bluegg.df)
Jim
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