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Hi all, I am using the quantile regression package for estimating some models. However, in some cases the intervals' upper bounds are either abnormally high or low, with values such as -1.797693e+308 or 1.797693e+308. Actually, the...
Dear all, There have been one or two questions posted to the list regarding the optim error "non-finite finite-difference value [4]." The error apparently means that the 4th element of the gradient is non-finite. My question is...
Dear all, I have written a function that takes two arguments, and I would like to feed it all pairs of values from -10 to 10. The following code works for all pairs of values between 1 and 10, but...
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