Hello everyone,
The logistic regression model utilises the relationship:
Logit(P)= XB (1) (in matrix formation)
but I would like to ask why an error term does not appear in (1) i.e.
why it is not:
Logit(P)= XB + E
I know that for logistic regression, for a single binomial response,
E(y)=np and for linear regression:
E(Y)=XB (2) (in matrix formation)
or Y=XB+E (in matrix formation)
But I cannot see the link between (1) and (2) i.e. why the error term
does not appear in (1). Can anyone help?
Many thanks,
Kim
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