topic Re: Non linear regression in Statistical Procedures

Non linear regression

Adelodun — Mon, 31 May 2021 17:31:45 GMT

How do i get the coefficients in:

C = H exp [- (bo + b1A^-1) D/H]

Thank you.

Re: Non linear regression

PaigeMiller — Mon, 31 May 2021 17:54:16 GMT

Start by looking at the documentation and examples for PROC NLIN

Examples of PROC NLIN: https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.3/statug/statug_nlin_examples.htm

https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.3/statug/statug_nlin_gettingstarted.htm

Documentation for PROC NLIN: https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.3/statug/statug_nlin_toc.htm

Re: Non linear regression

PGStats — Mon, 31 May 2021 18:22:31 GMT

Can C take negative values? If not then maybe you should be fitting the Log of C, in which case you would be fitting a linear equation (with proc reg, for example).