[R] Need help with barplots

I`ve read all the manuals and still couln`t find what is the difference between the stacked and side-by-side barplots ? Could you explain me ? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list

[R] Need help with tables

I have a data file with 3 columns and I need to take only 2, how to do that ? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] Need help with boxplots

How to add a mean line in the boxplot keeping the median line ? For example in this: set.seed(1) a - rnorm(10) b - rnorm(10) boxplot(a, b) [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list

[R] Need help with boxplots

How to add a mean *line* in the boxplot keeping the median line ? Maybe it is possible to do using the *segments* function ? For example in this: set.seed(1) a - rnorm(10) b - rnorm(10) boxplot(a, b) [[alternative HTML version deleted]] __