Hi, I am new to the forum and stata itself. I need help in drawing a concentration curve. I am trying to graph prenatal care according to the wealth index. My prenatal care is a dichotomous variable ("yes/no") and after using the following code:


glcurve prenatal_care [aw=weight], glvar(yord) pvar(rank) sortvar(wealth) lorenz

I get a graph that is kinked and has jumps, instead of a smooth curve. Could someone please guide me on how to fix it. The data is from the DHS.

Many thanks.

I have also added the attatchment

I have also attached the output of the graph Array