Hello all,when I was doing quantile regression, I outputted the table and found that several of the standard errors were 0. What is the problem?The fourth digit of the standard error obtained by this command is not 0, and the first three digits are 0. Should I keep the four digits? There is still something wrong with this data, thank you!

My run command is asdoc qregpd lnfincome party trust relation age age2 gender marry edu health,id(familysize) fix(year) optimize(mcmc) noisy draws(1000) burn(100) arate(.1), nest replace
Array