marigold
04-01-2009, 07:24 AM
I want to do a multiple regression , correlating offspring produced on mating one with offspring produced on mating two also with male age at the first mating as a variable.
The 'dependent' variable would be offspring produced after second mating with offspring produced from first mating and male age at first mating as the other two (explanatory) variables.
Do i -> analyse ->regression -> linear ,then put both first mating offspring and male age in the independent box? Not sure what stats / plot to look at?
Or GLM stepwise reduction.
Also tried R but couldn't get past 'pairs' as not enough df
Should i just be looking at graphs?
The books all seem very vague on this topic!
The 'dependent' variable would be offspring produced after second mating with offspring produced from first mating and male age at first mating as the other two (explanatory) variables.
Do i -> analyse ->regression -> linear ,then put both first mating offspring and male age in the independent box? Not sure what stats / plot to look at?
Or GLM stepwise reduction.
Also tried R but couldn't get past 'pairs' as not enough df
Should i just be looking at graphs?
The books all seem very vague on this topic!