Can you regress sasdate on a continuous variable

RACHEL2425 — Fri, 03 Jun 2022 15:33:54 GMT

Is the following regression appropriate?

For example:

PROC REG DATA=work.wastewater PLOTS = (FITPLOT);

where '30nov2021'd <= sasdate <= '9jan2022'd ;

MODEL LOGMGC = sasdate / clb;

RUN;

Re: Can you regress sasdate on a continuous variable

PaigeMiller — Fri, 03 Jun 2022 15:41:08 GMT

Of course, you CAN do this and get results. Is it appropriate? That depends on a lot of things, including an assumption that LOGMGC increases or decreases linearly as the day changes over this time period. Only you can determine if that is a good assumption for your problem.

More naturally, people use time series models to model the effect of changing time on some response, this does not impose a linear response, but allows for all different types of response of the variable LOGMGC to the change in day, including modeling the effect of auto-correlation, periodic changes, and other time series effects.

topic Can you regress sasdate on a continuous variable in SAS Programming

Can you regress sasdate on a continuous variable

Re: Can you regress sasdate on a continuous variable