I have boxplot that are 6 boxplots represented in on x and y axis. I wnt to do ttest to find the signigcance of the data between the plots.
My first question is that how can I do ttest for these 6 plots? should it be based on the pair of them like 1 and 2, 1 and 3 up to 1 and 6 and then 2 and 3 and so on which would be 15 pairs. Abny idea how to do that for 6 series of numbers (6 boxplots)?
My second question is how to represent the output on the boxplot to show the significance?
Thanks a lot
I found this online and I think I need to make similar plot.
The question is now how to add those horizontal lines above the boxplots with the pvalue? and as I have 6 boxplots, I am afraid representing in that way would make the plot nasty and hard to understand. Any idea?