I am trying to run quantile regression with clustered standard errors. I would like to run .25, .5 .75. and .9 all at once. This is my code (that I saw others have used), however I keep getting an error:
Code:
qreg2 y x, q(.25 .5 .75 .9)
This is the error I get:

"option q() incorrectly specified"

When I run it separately ,q(.25) ect. works for all four.

Thank you.