[R] extracting residuals from glm object

[utkarshsinghal]

Hi All,

Can anybody explain why the following three ways of extracting residuals 
from a glm object are giving me different outputs:

 > idv = runif(1000,0,1)
 > dv = rbinom(1000,1,0.5)
 > d = data.frame(idv,dv)
 > fit = glm(dv~idv, data=d, family=binomial)

 > head(residuals(fit))
        1         2         3         4         5         6
 1.216862 -1.161059 -1.156795  1.204759 -1.141068  1.201437

 > head(fit$residuals)
        1         2         3         4         5         6
 2.096724 -1.962126 -1.952454  2.066224 -1.917492  2.057981

 > head(d$dv-fit$fitted.values)
         1          2          3          4          5          6
 0.5230655 -0.4903489 -0.4878241  0.5160253 -0.4784855  0.5140869


Regards
Utkarsh