[R] defining lower part of distribution with covariate

2005-01-12 Thread Troels Ring
I try again - perhaps it is analysis of covariance with treatment (thio,ultiva) as two categories and antime as covariate. On the basis of such a model, is then the probability of GCS = 12 larger with thio treatment ? Dear friends, forgive me a simple question, possibly related to quantreg but

RE: [R] defining lower part of distribution with covariate

2005-01-12 Thread Berton Gunter
Subject: [R] defining lower part of distribution with covariate I try again - perhaps it is analysis of covariance with treatment (thio,ultiva) as two categories and antime as covariate. On the basis of such a model, is then the probability of GCS = 12 larger with thio treatment

[R] defining lower part of distribution with covariate

2005-01-10 Thread Troels Ring
Dear friends, forgive me a simple question, possibly related to quantreg but I failed to get it done and hope for basic instruction. I have two sets of observed Glasgow coma scores at admission to ICU after operation, and accompanying time of anesthesia (in hours). Thio is cheap and perhaps old