The NLMOD Procedure

The NLMOD procedure fits nonlinear regression models with standard or general distributions in SAS Viya.

PROC NLMOD enables you to specify the model by using SAS programming statements, which give you greater flexibility in modeling the relationship between the response variable and independent (regressor) variables than SAS procedures that use a more structured MODEL statement. The NLMOD procedure uses either nonlinear least squares or maximum likelihood to fit nonlinear regression models.