Compare against 0 (as opposed to between pairs)

[izkula]

Is there currently a way to annotate significance against 0 (for example, in a barplot, is each bar significantly different than 0), as opposed to requiring a comparison between a pair of bars in the plot? Like this:

Is this a feature that needs to be built, or am I just not finding it?

[trevismd]

You should be able to do something similar to what I suggested in here: #58.
Basically, if you have a function that takes one group (say X) and returns a statistic and a p-value (like scipy functions do), you can use it in statannotations. For which bar to annotate, simply provide pairs=[(groupX, groupX),...].