绘图数据-R中的boxplot如何删除NA

Question

I have a data table of university data. We are looking at successes 1 against failures 0 where successes are completed.

There are about 5000 observations and 65 variables.

I have a heap of NAs in the success column. When I try to plot against the other data the NAs keep appearing as a category in my boxplot alongside the 1s and 0s.

The code I am currently using is:

plot(WAM ~ success,data=na.omit(students), main="Boxplot: success and WAM")

The data is in data.table. Any advice on how to plot the 1 and 0s only?

Answer 1

Use ggplot:

library(ggplot2)    
ggplot(students) + geom_boxplot(aes(x = success, y = WAM))