02-28-2013 04:11 PM
I have two data sets - one looks like it approximates a two parameter simple exponent (y=ab^x) and the other like it is a logistic growth curve. How can I: 1) Use SAS to estimate the parameters of the curves; 2) test the fit of the curves to the data. Thanks.
02-28-2013 04:24 PM
1) PROC NLIN
2) "test the fit of the curves to the data" -- there is no such test; you can quantify how close the data is to the fitted line (something like a Mean Square Error or Root Mean Square Error)