Part of the problem is that 'country' is probably a factor and you
will get all the levels that were in the original factor in the new
subset. Try the following that will remove the extra levels in the
factor:
my.subset <- subset(Forbes2000,
country %in% c("United
Kingdom","Germany","India","Turkey"))
# remove the extra factor levels
my.subset$country <- my.subset$country[, drop=TRUE]
boxplot(log(marketvalue)~country,
data = my.subset,
ylab="log(marketvalue",
varwidth=TRUE)
On Jan 19, 2008 10:11 PM, Joe Trubisz <[EMAIL PROTECTED]> wrote:
> Hi...
>
> I'm working through the book, A Handbook of Statistical Analyses
> using R by Everitt, and I'm trying to do the following (p. 19 of his
> book):
>
> boxplot(log(marketvalue)~country,
> data = subset(Forbes2000,
> country %in% c("United
> Kingdom","Germany","India","Turkey")),
> ylab="log(marketvalue",
> varwidth=TRUE)
>
> This *almost* works, but I'm getting ALL the countries on the x-axis,
> not just the 4-specified.
> I tried tinkering with variations in the subset command to no avail.
>
> Can someone tell me what's wrong/missing with the above command?
>
> Thanks,
> Joe
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem you are trying to solve?
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