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I have compared 3 groups of values at 3 different time points using wilcox.test in stat-compare. Because there are many comparison, I want to use different p value symbols to display on the graph the comparisons between the groups within the same timeline and comparison between the each groups at the 3 timelines.

Can anyone tell me how I can manually modify the symbols?

marc_s
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Irina Ionescu
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    See if [this SO post](https://stackoverflow.com/a/51807724/8245406) answers the question. Also [2](https://stackoverflow.com/a/64500496/8245406), [3](https://stackoverflow.com/questions/17084566/put-stars-on-ggplot-barplots-and-boxplots-to-indicate-the-level-of-significanc), [4](https://stackoverflow.com/a/29263992/8245406). – Rui Barradas Jul 08 '21 at 16:28

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