[R] Help with slope comparisons

Hello Forum, I have data for two groups of subjects for a ratio variable (cortisol level) assessed three times during the day (at 0600, 0900 and 2100 hours). So I have three means for each group. I have been asked to do a slope analysis to compare the two groups. According to my

Re: [R] Help with slope comparisons

On Nov 11, 2010, at 4:16 AM, Ravi Kulkarni wrote: Hello Forum, I have data for two groups of subjects for a ratio variable (cortisol level) assessed three times during the day (at 0600, 0900 and 2100 hours). So I have three means for each group. I have been asked to do a slope analysis to