Graph of mean/ci over time by categorical variable

[vanai oliveira]

Hi, I am relatively new to stata but have looked for help ciplot and help xtgraph plus hours online and cannot find a solution.
I have 1 continuous variable (mean csi) measured hourly over 24h.
I would like to plot mean csi over time but by two categorical variables (red_mov - binary).
I have tried ciplot over time but that does not allow me two categories.
I have tried xtgraph but a thrid (?) variable appears and the CI bars don't appear and modifying the graph options such as msymbol or bar(ci) does not cause any change on the output.
I am trying to achieve something like this:

But when I type the code: . xtgraph csi, group(red_mov) msymbol(D) av(am) offset(3) level(95%) bar(ci)
What get is this:

Please can you help?

[George Hoffman]

you could try the offset option in xtgraph to make a slight horizontal separation for your groups. other options are available within xtgraph.
other user-installable options are available, such as the lgraph package by Timothy Mak
another approach to consider would be to create a fully-parameterized regression model for your data, then use margins and marginsplot. you pprobably could consider setting up this model according to the planned hypothesis testing.