Hello,

I am trying to save the probability distribution of a variable under certain conditions so that I can then assign a random value from that distribution to some individuals in my sample who have a missing value for the variable. More specifically, I need to use bins of four different variables where I match those with a missing value of a variable I have called age1b to those with a non-missing value of the variable according to their age, education level, sex and survey year and then assign them a random value of age1b from that distribution. I am not familiar with Mata at all, so I'm not sure of the best way to do this.

Any help is appreciated!