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References: [ +from:xping@lycos.com: 13 ]

Total 13 documents matching your query.

1. sampling from bivariate gamma (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Fri, 22 Mar 2002 03:35:49 +0800
Dear All: Can anybody indicate me the papers or codes for sampling from bivariate gamma distribution with different marginal shapes and preselected correlation coefficient between the components? Tha
/archives/html/s-news/2002-03/msg00162.html (6,799 bytes)

2. influence function (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Wed, 11 Jul 2001 21:01:22 +0800
Dear All: Does anybody know about any S-PLUS implementations of the "influence function". I need to study sensitivity of my estimates to certain subset of datapoints. Thank you Xao Ping R&R Pharmakin
/archives/html/s-news/2001-07/msg00080.html (6,676 bytes)

3. fitting gamma (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Wed, 13 Jun 2001 05:38:52 +0800
Dear All: I need to fit a two-parametric gamma distribution to my data. Is there a ready-to-use S+ function to do maximum likelihood estimates for "shape" and "rate"? If not, how should I proceed usi
/archives/html/s-news/2001-06/msg00107.html (6,757 bytes)

4. summary fitting gamma (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Tue, 19 Jun 2001 05:59:00 +0800
Dear All: I would like to express my gratitude to Thomas Yee, James Stapleton, Tim Hesterberg, John Gavin and Greg Snow for the responses to my request on fitting gamma ditribution. Below is the code
/archives/html/s-news/2001-06/msg00152.html (7,852 bytes)

5. multimodal fit (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Thu, 15 Feb 2001 00:30:11 +0800
Dear All: I have a data set on frequency distribution of lengths of ribosomal chains. This distribution turns out to be multimodal, i.e., containing four or even five peaks, approximately equidistant
/archives/html/s-news/2001-02/msg00127.html (7,037 bytes)

6. dimnames (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Thu, 07 Dec 2000 03:56:31 +0800
Dear All: I do Monte Carlo simulation with thousands of tests. Each test is a computation of a 10*10 matrix and storing it within the array 10*10*Number.of.Tests. Is that possible that assigning dimn
/archives/html/s-news/2000-12/msg00057.html (7,080 bytes)

7. fitting byvariate model (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Fri, 15 Dec 2000 05:25:24 +0800
Dear All: I am trying to obtain analytical expression for a function of two variables q(p,N). A have a data matrix Q[i,j]=Q[p[i],N[j]] produced my Monte Carlo simulation; I found that satisfactory re
/archives/html/s-news/2000-12/msg00119.html (7,251 bytes)

8. t-test for binary data (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Thu, 02 Nov 2000 05:12:52 +0800
Dear All: I have two samples of different lengths containing binary varaibles (1,0). I need to figure out whether or not the probabilities of success are significally different in this samples. Which
/archives/html/s-news/2000-11/msg00004.html (7,117 bytes)

9. testing normality (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Wed, 08 Nov 2000 03:19:33 +0800
Dear All: Is there any s-plus function or method for testing normality of time series? I mean, how to account for autocorrelation? Any references are highly appreciated. Thank you Xao Ping R&R Pharma
/archives/html/s-news/2000-11/msg00051.html (6,642 bytes)

10. anderson - darling statistic (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Fri, 17 Nov 2000 04:59:15 +0800
Dear All: Where can I obtain an S-PLUS function for testing univariate normality using the Anderson-Darling statistic? Thank you Xao Ping R&R Pharmakinetics Taiwan Get FREE Email/Voicemail with 15MB
/archives/html/s-news/2000-11/msg00168.html (6,665 bytes)

11. clickable plot (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Thu, 30 Nov 2000 18:36:03 +0800
Dear All: I work in S+2000 under WinNT. I am writing a function which creates a clickable scatter plot. I want to open a third dimension or obtain a specific information related to certain data point
/archives/html/s-news/2000-11/msg00245.html (7,630 bytes)

12. trivariate normal (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Fri, 27 Oct 2000 05:34:28 +0800
Dear s-users: How can I generate the sample drawn from trivariate normal distribution with specified rho.xy,rho.yz & rho.zx? Any ideas, references, softawre etc? Thank you in advance Xao Ping, R@R Fa
/archives/html/s-news/2000-10/msg00225.html (6,723 bytes)

13. inavriance of distance (score: 1)
Author: "Xao Ping" <xping@lycos.com>
Date: Wed, 01 Nov 2000 05:34:41 +0800
Dear All: Are there linear transformations of trivariate sample which do not change the mahalanobis distance? Thank you Xao Ping R&R Faramkinetics Taiwan Get FREE Email/Voicemail with 15MB at Lycos C
/archives/html/s-news/2000-10/msg00249.html (6,554 bytes)

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