Re: [R] about comparison of KURTOSIS in package: moments and fBasics

2005-12-08 Thread Spencer Graves
There are doubtless tests for kurtosos by itself, though I'm not familiar with any. When I'm conderned about kurtosis (which is often), I routinely make normal probability plots of observations and residuals from model fits. If I see roughly a straight line, I conclude that I won't

Re: [R] about comparison of KURTOSIS in package: moments and fBasics

2005-12-05 Thread Baize, Harold
Thanks to Spencer Graves for providing links to explain the various types of kurtosis reported by R packages. Spencer Graves(http://mathworld.wolfram.com/k-Statistic.html). Spencer also said: SG However, these are little used, as the estimates are known to be so SG highly variable.

Re: [R] about comparison of KURTOSIS in package: moments and fBasics

2005-12-03 Thread Spencer Graves
Just a further point of clarification: W. E. Deming said there is no true value to any number obtained as a result of a measurement. If you change the method of measurement, you will tend to get different numbers. This introduces the theory of operational definitions.

Re: [R] about comparison of KURTOSIS in package: moments and fBasics

2005-12-02 Thread P Ehlers
(Haven't seen an anwer to this yet; maybe I missed it.) klebyn wrote: Hello I do not know very much about statistics (and English language too :-( ), then I come in search of a clarification (explanation): I found two distinct results on KURTOSIS and I do not know which of them

[R] about comparison of KURTOSIS in package: moments and fBasics

2005-12-01 Thread klebyn
Hello I do not know very much about statistics (and English language too :-( ), then I come in search of a clarification (explanation): I found two distinct results on KURTOSIS and I do not know which of them is the correct one. Any aid will be welcome! klebyn CODE