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6 results for “from:Ronald Kölpin”

Loop over regression results
Ronald Kölpin · Feb 17, 2015 · r-help

Thank you David and Thierry, your answers helped a lot! Kind regards, RK.

Looking up the code for a function
Ronald Kölpin · May 6, 2015 · r-help

Hi all, I am trying to find out how a certain functionality is implemented in R respectively what a certain found does exactly. Specifically I am interested in multivariate kernel density estimation. I found the "ks" package and its "kde...

maximum-likelihood-estimation with mle()
Ronald Kölpin · Sep 11, 2015 · r-help

Hi everyone, I have a problem with maximum-likelihood-estimation in the following situation: Assume a functional relation y = f(x) (the specific form of f should be irrelevant). For my observations I assume (for simplicity) white noise, such that...

Loop over regression results
Ronald Kölpin · Feb 16, 2015 · r-help

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear all, I have a problem when trying to present the results of several regression. Say I have run several regressions on a dataset and saved the different results (as in the mini example...

Maximum likelihood estimation (stats4::mle)
Ronald Kölpin · Jul 21, 2014 · r-help

Dear R-Community, I'm trying to estimate the parameters of a probability distribution function by maximum likelihood estimation (using the stats4 function mle()) but can't seem to get it working. For each unit of observation I have a...

Maximum likelihood estimation (stats4::mle)
Ronald Kölpin · Jul 22, 2014 · r-help

Thanks, that was exactly it -- switching the values did the trick (and was actually correct in terms of theory.) And of course, you are right -- i changed the starting values to mean(x) - mean(y) for mu and sqrt(var...

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