Re: [R] interpreting the output of a glm with an ordered categorical predictor.

2012-03-03 Thread peter dalgaard
On Mar 3, 2012, at 02:10 , kmuller wrote: Greetings. I'm a Master's student working on an analysis of herbivore damage on plants. I have a tried running a glm with one categorical predictor (aphid abundance) and a binomial response (presence/absence of herbivore damage). My predictor

[R] interpreting the output of a glm with an ordered categorical predictor.

2012-03-02 Thread kmuller
Greetings. I'm a Master's student working on an analysis of herbivore damage on plants. I have a tried running a glm with one categorical predictor (aphid abundance) and a binomial response (presence/absence of herbivore damage). My predictor has four categories: high, medium, low, and none. I