diff --git a/module4/src_R_challenger.Rmd b/module4/src_R_challenger.Rmd
index 1343002ae32fc50f519d4792a202bee8bdc0bbc6..a2d619c10a3355cc4e51eae15e0abeca9f3bfb6c 100644
--- a/module4/src_R_challenger.Rmd
+++ b/module4/src_R_challenger.Rmd
@@ -134,3 +134,5 @@ logistic_reg$family$linkinv(c(pred_link$fit-critval*pred_link$se.fit,
 The 95% confidence interval for our estimation is thus [0.163,0.992]. This is what ggplot2 just plotted me. This seems coherent.
 
 **I am now rather confident that I have managed to correctly compute and plot the uncertainty of my prediction.** Let's be honnest, it took me a while. My first attempts were plainly wrong (I didn't know how to do this so I trusted ggplot2, which I was misusing) and did not use the correct statistical method. I also feel confident now because this has been somehow validated by other colleagues but it will be interesting that you collect other kind of plots values that you obtained, that differ and that you would probably have kept if you didn't have a reference to compare to. Please provide us with as many versions as you can.
+
+*fin*