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fe90
2005 Mar 04
0
Multilevel modeling of animal behavior
...oriscale2)
# recalculating orih and He from the orid.azmt keeps all orientations in the same quartile,
# and eliminates negative orih values:
orih.azmt<- rep(tapply(orid.azmt,obs,circ.mean),tapply(orid,obs,length))
Herd.azmt.rho<- rep(tapply(orid.azmt,obs,est.rho),tapply(orid,obs,length))
He90<- abs(orid.azmt - orih.azmt))*Herd.azmt.rho*100
##########################
## What should be my next step? ##
##########################
# First I tried to insert He90 in a simple linear regression:
summary(lm(orid.azmt~ swr*temp*He90))
## over fitting?
## also tried various combination...