[R] Extract estimate of error variance from glm() object

[Christofer Bogaso]

Hi,

I have below GLM fit

clotting <- data.frame(
    u = c(5,10,15,20,30,40,60,80,100),
    lot1 = c(118,58,42,35,27,25,21,19,18),
    lot2 = c(69,35,26,21,18,16,13,12,12))
summary(glm(lot1 ~ log(u), data = clotting, family = gaussian))

Is there any direct function to extract estimate of Error standard deviation?