I want to put on a x ,y graph (two numeric continuous variables) with linear adjustement, an error bar which represents standard error of mean of my y variable (that I calculate in my database).
Surprisingly, there is no easy way to do that (or I ignore it). So I create a script with the graph builder where I added an element Bar in "interval " style using two variables "lower" and "upper" corresponding to my y variable +- standard error (script find on this forum, thx).
My graph result is good but the error bar design is bad quality. Help please!