Hi, I am not a statistician and so I am sure whatever it is I am doing wrong
must be an obvious error for those who are...Basically I can not understand
why I get NA for variable 'CDSTotal' when running a glm? Does anyone have an
idea of why this might be happening?
Call: glm(formula = cbind(SRAS - 26, 182 - SRAS) ~ Age + Gender + LOC +
PC + Stability + CDSTotal, family = binomial, data = Controlgroup)
Coefficients:
(Intercept) Age Gender LOC PC Stability
-2.575071 0.009148 0.354143 0.018295 -0.011317 0.090759
CDSTotal
NA
Degrees of Freedom: 64 Total (i.e. Null); 59 Residual
Null Deviance: 2015
Residual Deviance: 1264 AIC: 1614
Thanks
Matthew
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