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William Rose

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05 Jun 2007 Minimum Description Length Computes MDL for a model. Author: William Rose system identification, mdl, rissanen, minimum description l... 20 2
  • 3.25
3.2 | 4 ratings
11 Oct 2006 1D Gaussian lowpass filter Returns coefficients of 1D Gaussian lowpass filter Author: William Rose filter design, filter analysis, gaussian lowpass filt..., 1d, coefficients, low pass 20 1
  • 2.66667
2.7 | 3 ratings
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16 Nov 2014 Approximate Entropy This function computes approximate entropy of a data series. Author: Avinash Parnandi

I agree with Sanantha Raj's question.
Pincus defines ApEn in PNAS, 1991, with equations 1, 6, and 10. Equation 6 indicates that one should take the sum of the logs, rather than the log of the sum. But the equation used in approx_entropy.m is consistent with the equation given by Moody at http://www.physionet.org/physiotools/ApEn/. Can you explain the discrepancy?

17 Apr 2011 qtukey Finds the Tukey's q studentized range critical value. Author: Antonio Trujillo-Ortiz

qTukey() not very accurate.
qTukey implements an algorithm (AS 190.2, called qtrng0() in the Fortran) which was only intended to be a first approximation of Tukey's q. qtrng0 was intended to serve as a startup estimate for the more accurate routine, AS 190.1, called qtrng() in the Fortran. qtrng() uses AS 190, called prtrng() in the Fortran. ptrng() computes a p value for a given q statistic. qtrng() computes q for a desired probability p by recursively calling prtrng() and updating its estimate for q, until the desired accuracy is achieved (p within 0.001 in the Fortran code). If someone converts the Fortran routines prtrng() and qrtrng to m files, then we will have a good algorithm for estimating Tukey's q. Fortran code at http://lib.stat.cmu.edu/apstat/190.
- rosewc@udel.edu

Comments and Ratings on William Rose's Files View all
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17 Apr 2013 Minimum Description Length Computes MDL for a model. Author: William Rose li zhonghui

very well

15 Mar 2013 Minimum Description Length Computes MDL for a model. Author: William Rose wang lixia

23 Jul 2012 Minimum Description Length Computes MDL for a model. Author: William Rose Moorthi

22 Feb 2008 1D Gaussian lowpass filter Returns coefficients of 1D Gaussian lowpass filter Author: William Rose

14 Feb 2008 1D Gaussian lowpass filter Returns coefficients of 1D Gaussian lowpass filter Author: William Rose

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