Question

I’m using the weather.csv dataset that comes with Rattle (NOTE: I’m NOT using Rattle for this) and trying to construct a box plot relating the wind direction and wind speed. I’m doing the following but no plot shows up and no errors or warnings either:

weatherPlot <- ggplot(weather, aes(factor(WindGustDir), WindGustSpeed)) 
weatherPlot + geom_boxplot()

Any ideas why my plot would be blank?

P.S. WindGustDir data is categorical values like N, E, W, S, NW, SE, etc and WindGustSpeed is numerical.

Answer 1

Your code works for me on my installation (R 2.15.2, 64 bit.) So this probably isn’t a coding thing. Can you check that you don’t have any other code around this segment that is causing a problem (e.g. just try the minimalist code below.)

library(rattle)
library(ggplot2)

weatherPlot <- ggplot(weather, aes(factor(WindGustDir), WindGustSpeed)) 
weatherPlot + geom_boxplot()