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Mar
17
comment How to test the autocorrelation of the residuals?
With H0: correlation (r) = 0, then r follows a normal/t dist with mean 0 and variance of sqrt(number of observations). So you could get the 95% confidence interval using +/- qt(0.75, numberofobs)/sqrt(numberofobs)
Oct
23
comment How to rank film production companies based on weighted ranks?
Of course, this has problems. It depends on the weight you give to a production company that produces lots of fairly good films relative to a company that makes one or two films that rank very highly.
Oct
23
answered How to rank film production companies based on weighted ranks?
Oct
20
answered Constructing multilevel regression design matrix
Oct
18
comment Extrapolate forecasts to present data
Why not set h = 365 + 292 + 7?
Jul
12
answered Ordered logit with (too many?) categorical independent variables
Jun
23
comment Ordered logit with (too many?) categorical independent variables
By the way, I played around a bit with this method, and it fixed it up. However, I also tried running the original model through the bayespolr function in the 'arm' library, which worked perfectly. I recommend it strongly.
Jun
21
comment Ordered logit with (too many?) categorical independent variables
Thanks lejohn. Great reply.
Jun
21
awarded  Supporter
Jun
20
awarded  Student
Jun
20
asked Ordered logit with (too many?) categorical independent variables
Mar
26
awarded  Teacher
Mar
26
answered Good algorithm for processing positional estimates