Re: [R] Formula with no intercept

2008-04-17 Thread Gang Chen
k the 'convenience' is largely lost, > and packages such as multcomp can post-hoc test any (coherent) set of > hypotheses you choose, irrespective of the model parametrization. > > > > > > > > -Original Message- > > > From: [EMAIL PROTECTED] > &g

Re: [R] Formula with no intercept

2008-04-16 Thread Prof Brian Ripley
s such as multcomp can post-hoc test any (coherent) set of hypotheses you choose, irrespective of the model parametrization. >> -Original Message- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Gang Chen >> Sent: Monday, April 14, 2008 5:38 PM &g

Re: [R] Formula with no intercept

2008-04-16 Thread Doran, Harold
Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gang Chen > Sent: Monday, April 14, 2008 5:38 PM > To: [EMAIL PROTECTED] > Subject: [R] Formula with no intercept > > I'm trying to analyze a model with two variables, one is > Group with two l

[R] Formula with no intercept

2008-04-14 Thread Gang Chen
I'm trying to analyze a model with two variables, one is Group with two levels (male and female), and other is Time with four levels (T1, T2, T3 and T4). And for the convenience of post-hoc testing I wanted to consider a model with no intercept for factor Time, so I tried formula Group*(Time-1) H