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December 29, 2015 07:19
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R multibar plot
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| library(Hmisc) # summarize | |
| dx = summarize(mtcars$hp, llist(mtcars$cyl, mtcars$gear), sum) | |
| dx = summarize(mtcars$hp, llist(mtcars$cyl, mtcars$gear), mean) | |
| names(dx) = c("cyl", "gear", "hp") | |
| dx.t = xtabs(hp ~ cyl + gear, dx) | |
| barplot(dx.t, | |
| beside=T, | |
| col=rainbow(3), | |
| xlab="gear", ylab="Mean(hp)", | |
| legend = rownames(dx.t) | |
| args.legend = list(x="topleft", title="Num cyl")) |
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