need jsl script help - trying to remove random rows for model validation testing and use the remainder of rows for model creation
Hi - I am trying to fit a regression equation using a random 80% of data and, using the resulting modeled equation, run the remaining 20% of data through the model and save the observed versus modeled results of those 20%. That is, the 20% of rows are used for validation. My dataset has 227 rows. I want to train (i.e. develop a regression equation) using 80% of those after which that regressi...