Search String: Display: Description: Sort:

Results:

References: [ +from:jsorkin@grecc.umaryland.edu: 21 ]

Total 21 documents matching your query.

1. Re: big data library for $2200 (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 08 Nov 2005 21:31:16 -0500
My experience with Insightful not good. They would not let me install Splus on more than one machine. Thus I could install it on my office computer, but not my laptop. Insightfull was willing to giv
/archives/html/s-news/2005-11/msg00010.html (8,417 bytes)

2. Re: Concerns about SPLUS version 7 (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 12 Jul 2005 10:29:11 -0400
I too have found the new license agreement onerous and spoke to Insightful to no avail. In the past I have loaded SPlus on my desktop at work and my laptop. I never used the two computers at the same
/archives/html/s-news/2005-07/msg00065.html (14,052 bytes)

3. Re: Concerns about SPLUS version 7 (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 12 Jul 2005 12:34:58 -0400
Insightful, are you paying attention to these comments? Have you noted the number of contributions to the R vs. SPlus listservers? Don't lose you customer base, don't be penny wise and pound foolish.
/archives/html/s-news/2005-07/msg00072.html (11,542 bytes)

4. Re: Concerns about SPLUS version 7 (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Fri, 15 Jul 2005 11:37:08 -0400
Thank you for your thoughts. I agree that Insightful can, and does, provide added value to the basic S language. As I have told you in the past, I wish your company the best and want you to succeed.
/archives/html/s-news/2005-07/msg00094.html (12,770 bytes)

5. Re: Off-topic: Anocova of change scores with baseline (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 10 May 2005 13:41:29 -0400
g
/archives/html/s-news/2005-05/msg00040.html (8,427 bytes)

6. SEs from lm (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Fri, 13 May 2005 07:19:00 -0400
U
/archives/html/s-news/2005-05/msg00083.html (7,431 bytes)

7. lme leads to error related to contrasts (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Sat, 26 Feb 2005 23:27:31 -0500
I ran the following code in S-Plus 6.2 running on Win 2k. options(contrasts=c(factor="contr.SAS",ordered="contr.poly")) fm2 <- lme(WLFFUN ~ age|SUBNUM, data="" I hope someone can help me understand t
/archives/html/s-news/2005-02/msg00154.html (7,324 bytes)

8. Importing dates from Excel (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Mon, 03 Jan 2005 18:39:12 -0500
I am trying to import an Excel spreadsheet containing dates using Any suggestions? I could not find any solution in the archives. S-Plus 6.2, Win 2k Thanks John John Sorkin M.D., Ph.D. Chief, Biostat
/archives/html/s-news/2005-01/msg00007.html (7,167 bytes)

9. Re: Importing dates from Excel SUMMARY OF RESPONSES (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 04 Jan 2005 13:49:46 -0500
I am indeed grateful to everyone who supplied a prompt answer to my question about importing data from an Excel spreadsheet. I am re-posting my original question below, along with all the answers I
/archives/html/s-news/2005-01/msg00016.html (15,802 bytes)

10. Identifyiing points in a qqplot (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Wed, 12 Jan 2005 21:07:43 -0500
i
/archives/html/s-news/2005-01/msg00069.html (7,529 bytes)

11. help with bootstrap (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Fri, 30 Apr 2004 23:34:41 -0400
Can someone help me understand why I am receiving an error message, and what I can to do correct the error? I am using SPlus 6.2 on a W2K computer Thanks John Sorkin John Sorkin MD, PhD Chief, Biosta
/archives/html/s-news/2004-05/msg00000.html (7,003 bytes)

12. problem with bootstrap (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Fri, 30 Apr 2004 23:52:18 -0400
I am using SPlus 6.2 on a W2K computer. Please help me understand and correct the error noted below. Thanks John flip<-bootstrap(testdata,t.test(x=testdata$oneten,y=testdata$threethirteen),B=100) Pro
/archives/html/s-news/2004-04/msg00150.html (6,175 bytes)

13. m (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Mon, 12 Jan 2004 01:09:19 -0500
I am trying to compare survival in three groups using interval censored data. I have used resultsA <- kaplanMeier(censor(lower, upper, cen) ~ Exp + Dose, weights = weight, data = "" subset = (Exp ==
/archives/html/s-news/2004-01/msg00044.html (8,450 bytes)

14. code for finding row and column number of cells with T in a n by n logical matrix (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 14 Oct 2003 13:41:29 -0400
/archives/html/s-news/2003-10/msg00127.html (8,079 bytes)

15. Build a matrix from the vector returned by a function (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Thu, 21 Aug 2003 21:31:28 -0400
Please help me build a matrix from the vector returned by a function! I wrote a function that returns two values. An abbreviated version of the function is shown below: f<-function(n, v, StD1, aM1, S
/archives/html/s-news/2003-08/msg00127.html (8,344 bytes)

16. Simulation of survival data to produce sample size estimate. (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Mon, 16 Jun 2003 18:39:10 -0400
I am planning a longitudinal follow-up of a human population. In the past when I needed a sample size estimate for a survival study I have used a parametric approach to the sample size estimation, i.
/archives/html/s-news/2003-06/msg00102.html (7,684 bytes)

17. Multiple comparisons - general stat question (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Mon, 28 Apr 2003 17:03:06 -0400
2
/archives/html/s-news/2003-04/msg00182.html (7,272 bytes)

18. bootstrap a subsample of a dataframe (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Tue, 24 Dec 2002 19:14:45 -0500
I have a dataframe containing 400 observations. I would like to perform a series of linear models [i.e. lm()] in which each lm is computed from a random sample with replacement of size 380 taken from
/archives/html/s-news/2002-12/msg00156.html (7,160 bytes)

19. residuals large when predicted value small, small when pred large (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Sun, 10 Nov 2002 15:42:28 -0500
Please forgive a general stats question: I am doing a regression of the change in one variable on the change in a second variable adjusted for the initial value of the dependent variable: delta y=f(y
/archives/html/s-news/2002-11/msg00084.html (7,860 bytes)

20. Using a median in a regression (score: 1)
Author: "John Sorkin" <jsorkin@grecc.umaryland.edu>
Date: Sun, 20 Jan 2002 21:19:13 -0500
I hope you will excuse a general statistical question rather than a specific SPlus question! I am exploring the relation between a complex signal and an independent variable x. In order to make the p
/archives/html/s-news/2002-01/msg00138.html (7,046 bytes)


This search system is powered by Namazu