Event study graph using command eventdd

[Marie Louise]

Hi,

I am doing a event study in stata using the eventdd command.
Is it possible to move the solid vertical line from -1 to 0 on the x-axis?

I hope someone is able to help me and thank you in advance.

[Andrew Musau]

I do not use eventdd which should be community-contributed (see FAQ Advice #12 on stating the provenance of such commands). If your issue is on just the labels and the command allows twoway options, you can simply re-label the x-axis adding the option (after the comma):

..., xlab(-21 "-20" -11 "10" -1 "0" 9 "10" 19 "20")

But that may introduce some confusion if one notices that the base in your analysis is \(t=-1\) whereas in the graph, this is at \(t=0\). You should probably address this earlier in the coding of time.