search for: mom_ed

Displaying 2 results from an estimated 2 matches for "mom_ed".

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2011 Dec 06
2
Why can't I figure this out? :S
...s telling the program to do, but I apparently need to be able to find and isolate influencial observations. Problem, I have no idea what the error means and where it may be from in the code. error I get is below the code { ## OLS results NameC<- lm(gpanew~female+female:lastinit+agenew+canadian+mom_ed+yearstudy) ## default: choose psamp = quantile n <- length(residuals(NameC)) k <- length(coef(NameC)) if(is.null(quantile)) quantile <- c(floor((n + k + 1)/2), floor((n + k)/2)) quantile <- rep(quantile, length.out = 2) if(is.null(psamp)) psamp <- quantile[1] ## LTS results with ro...
2002 Apr 22
3
glm() function not finding the maximum
Hello, I have found a problem with using the glm function with a gamma family. I have a vector of data, assumed to be generated by a gamma distribution. The parameters of this gamma distribution are estimated in two ways (i) using the glm() function, (ii) "by hand", using the optim() function. I find that the -2*likelihood at the maximum found by (i) is substantially larger than that