topic Re: Quantile regression in Statistical Procedures

Quantile regression

gx2144 — Tue, 25 Aug 2020 21:02:15 GMT

Hi, I wanted to apply quantile regression equation on my dataset. Below is the function:

How can I apply these equations on my variables (age, weight, height and Z5)?

Appreciated.

Re: Quantile regression

Rick_SAS — Tue, 25 Aug 2020 21:15:51 GMT

When you say "how can I apply these equations", do you mean how do you obtain the estimates?

Or do you mean how do you use the estimates to predict new data?

Both questions are addressed in the article "How to score and graph a quantile regression model in SAS."

The model is

MODEL Z5 = Age Weight Height / quantile = 0.05 0.5 0.95;
You can use the missing value trick to score (predict) the model on new data.

I don't understand why you do not have estimates for the Weight variable in your chart. If that is really what your table looks like, please show us the code you used to obtain those estimates.

Re: Quantile regression

StatDave — Tue, 25 Aug 2020 21:16:40 GMT

Take a look at the discussion and examples in the PROC QUANTREG documentation.