[R] Comparing and Analysing Slopes from GLM abline?

[sm2284]

Dear R, 

I have 3 sets of data x1, x2 and x3. I have plotted them against my
independent variable 'Time' using the "abline" feature of a GLM model.

I would like to test if the slopes of those models are significantly
different from x1. 

I would appreciate any help given, I am a self taught statistician and as we
all know, the literature can be quite dense, it's not easy for a 20
something year old.

Thank you in advance, 
Stephen



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University of St Andrews, 
sm2284 at st-andrews.ac.uk
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