Scott Lamb wrote:
> Scott Lamb wrote:
>> I've tried replacing the for loop body with this:
>>
>> this_method <- split.df[[i]]
>> boxplot(elapsed~inactive, data=this_method,
>> add=TRUE, border=i, boxfill=i, outline=FALSE)
>>
>> but it has two problems:
>>
>> * it doesn't plot at the correct x values. It looks like I need to
>> supply a list of the x values as the "at" parameter, and I don't know
>> how to get unique values from this_method$inactive. (I tried the clunky
>> labels(split(this_method, this_method$inactive)), but it returns them as
>> strings.)
>
> Ahh. I missed the obvious answer - there's a function called unique.
> at=unique(this_method$inactive) works.
>
>> * it redraws the graph's frame, and it ignores bty="l" when doing so.
>
> also the x axis tics and labels...they're totally unreadable now.
Ahh. There is an "axis=FALSE" parameter to bxp, which boxplot passes
along. Thanks again, and sorry for all the list noise.
For the record, here's exactly what I did to duplicate the original graph:
df <- read.csv("http://www.slamb.org/tmp/one-active.csv";)
png(filename="one-active.png", width=800, height=600)
split.df <- split(df, df$method)
plot(0, xlim=c(0, max(df$inactive)), ylim=range(df$elapsed),
ylab="time (µs)", xlab="inactive file descriptors", log="y",
main="1 active descriptor, 1 write", bty="n", type="n")
grid()
for (i in seq_along(split.df)) {
this_method <- split.df[[i]]
unique_inactive <- unique(this_method$inactive)
boxplot(elapsed~inactive, data=this_method,
at=unique_inactive, axes=FALSE,
add=TRUE, border=i, boxfill=i, outline=FALSE, bty="l",
whisklty="solid", staplelty="blank", medlty="blank",
boxwex=max(unique_inactive)/length(unique_inactive)/2)
}
legend("topleft", legend=labels(split.df),
fill=seq_along(split.df), bty="n")
Cheers,
Scott
--
Scott Lamb <http://www.slamb.org/>
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