Re: [R] Fw: Variable selection based on both training and testing data

nt: Monday, January 30, 2012 11:30 AM Subject: Re: [R] Fw: Variable selection based on both training and testing data Dear Scott, I am so sorry that I think I just sent an empty email to you. Thanks a lot for your advice. The problem is that we do not have sufficient prior knowledge for the regressio

Re: [R] Fw: Variable selection based on both training and testing data

[R] Fw: Variable selection based on both training and testing data > To: "r-help@r-project.org" > Date: Monday, 30 January, 2012, 14:57 > > > From: SR Millis > To: Jin Minming > > Sent: Monday, January 30, 2012 9:25 AM > Subject: Re: [R] Variable selectio

[R] Fw: Variable selection based on both training and testing data

From: SR Millis To: Jin Minming Sent: Monday, January 30, 2012 9:25 AM Subject: Re: [R] Variable selection based on both training and testing data Jim, First, stepwise methods for variable selection should be avoided.  Frank Harrell (in Regression Modeling Strategies) discusses this at len

[R] Fw: Variable selection based on both training and testing data

From: SR Millis To: Jin Minming Sent: Monday, January 30, 2012 9:25 AM Subject: Re: [R] Variable selection based on both training and testing data Jim, First, stepwise methods for variable selection should be avoided.  Frank Harrell (in Regression Modeling Strategies) discusses this at le