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References: [ +from:ananthcv@epi.umdnj.edu: 18 ]

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1. AIC in gam() (score: 1): Author: ananthcv <ananthcv@epi.umdnj.edu>; Date: Mon, 7 Apr 2003 15:21:47 -0400 (EDT); l; /archives/html/s-news/2003-04/msg00040.html (6,836 bytes)
2. Re: Query: GAMS and ORs (score: 1): Author: ananthcv <ananthcv@epi.umdnj.edu>; Date: Tue, 15 Apr 2003 13:09:11 -0400 (EDT); n; /archives/html/s-news/2003-04/msg00097.html (8,693 bytes)
3. Error in gam() ? (score: 1): Author: hp.cals.wisc.edu>; Date: Thu, 16 Aug 2001 10:15:55 -0400 (EDT); Hello all: I'm trying to plot (using plot()) a gam object: gam(y ~ lo(x,deg=2)), but get an error message that reads: Error in as.double: Cannot coerce mode list to double: .Data = list(.. summary(); /archives/html/s-news/2001-08/msg00122.html (6,519 bytes)
4. Plotting on log scale in persp() (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Thu, 3 May 2001 11:41:24 -0400 (EDT); I need to plot a graph using the persp() function (its a 3-D plot). How do I plot the response (z variable) on a log scale. The online help says that I can use any of the par() functions in persp(),; /archives/html/s-news/2001-05/msg00036.html (7,048 bytes)
5. persp() function question (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Thu, 19 Apr 2001 15:32:23 -0400 (EDT); Splus users: I'm running S-Plus 3.4 on the UNIX, Sun Os. Any help will be much appreciated. cheers, ananth; /archives/html/s-news/2001-04/msg00209.html (6,480 bytes)
6. [S] Printing a gam() plot (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Fri, 1 Oct 1999 09:28:46 -0400 (EDT); I am trying to print a plot that was derived from a gam() fit. I fit a logistic regression model using gam(), and the plot shows the log-odds against the covariate, with pointwise 95% SHADED interva; /archives/html/s-news/1999-10/msg00003.html (7,218 bytes)
7. [S] Error in predict.gam() (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Mon, 4 Oct 1999 09:49:25 -0400 (EDT); I'm trying to predict an interaction-effect from the gam() model gam.int <- gam(y ~ lo(x1,x2,span=0.4,degree=2), binomial) but get the following error: I don't think that I'm forcing the predict() f; /archives/html/s-news/1999-10/msg00021.html (7,384 bytes)
8. [S] SAS v8 to SPlus conversion (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Fri, 17 Sep 1999 12:53:08 -0400 (EDT); I have a SAS data set (created using SAS version 8.0 on the UNIX), and need to have that data converted to a SPlus dataframe. Using the "sas.get" option in Splus does not seem to do the job (gives a; /archives/html/s-news/1999-09/msg00176.html (7,528 bytes)
9. [S] SUMMARY: SAS v8 to SPlus conversion (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Fri, 17 Sep 1999 14:22:26 -0400 (EDT); I had asked for help for converting SAS version 8 data sets to Splus using the sas.get() function. Thanks to the following individuals for the very quick, and efficient responses: James Handsfield (; /archives/html/s-news/1999-09/msg00179.html (11,024 bytes)
10. [S] GAM interaction terms (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Mon, 20 Sep 1999 11:17:49 -0400 (EDT); I'm attempting to fit a Poisson regression model to with 2 continuous variables, X1 and X2, using the gam() function. I'm allowing smooth terms for X1 and X2. The data contain about 80,000 observatio; /archives/html/s-news/1999-09/msg00194.html (7,735 bytes)
11. [S] persp() function on a log-scale (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Wed, 29 Sep 1999 16:06:00 -0400 (EDT); I need to generate a 3-D graph, using the persp() function. However, the z-axis need to be on a log-scale, and I cannot figure out how to do that. I tried using the "log" option persp(pnd,surface, lo; /archives/html/s-news/1999-09/msg00285.html (7,096 bytes)
12. [S] Splus error in "object.size" (score: 1): Author: "Cande V. Ananth" <ananthcv@epi.umdnj.edu>; Date: Mon, 19 Jul 1999 15:26:22 -0400 (EDT); I'm running Splus 3.4 on the UNIX (Solaris 5.7, SunOS). When I try and fit a logistic regression model (my data set contains 193,000 observations) with 6 covariates (all binary), I get the following; /archives/html/s-news/1999-07/msg00147.html (7,622 bytes)
13. Re: [S] Problem reading large files. (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Fri, 16 Oct 1998 08:33:10 -0400; The same exercise took 5.54 and 27.85 seconds, respectively, for reading in the data sets with 100,000 and 500,000 observations. I'm running S-Plus 3.4 on the UNIX. Obviously, it all depends on the; /archives/html/s-news/1998-10/msg00104.html (9,332 bytes)
14. [S] xyplot function (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Tue, 8 Sep 1998 09:33:23 -0400; Dear S'ers: I'm trying to use the "xyplot" function to produce a scatter plot with a loess smooth, with the plots stratified on a third variable. The stratifying variable has 4 levels, coded "No-abru; /archives/html/s-news/1998-09/msg00036.html (8,123 bytes)
15. Re: [S] xyplot function (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Tue, 8 Sep 1998 10:53:13 -0400; Thanks to Drs Ripley, Pinheiro, Clark, and Smith for pointing out the usefulness of the ordered() function. It worked ! -- Cande V. Ananth ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~; /archives/html/s-news/1998-09/msg00037.html (8,357 bytes)
16. [S] Receiving every mails twice (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Thu, 6 Aug 1998 11:12:32 -0400; Since this morning, I've been receiving all messages from S-news twice. Is something worng at the distribution-site, or am I the only one to receive every email twice (meaning that the problem is loc; /archives/html/s-news/1998-08/msg00039.html (8,044 bytes)
17. Re: [S] strange p-value for Fisher exact's test (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Mon, 23 Mar 1998 15:19:15 -0500; Strangely enough, this is what I got: Fisher's exact test data: rbind(c(1, 1), c(71, 77)) p-value = 1 alternative hypothesis: two.sided -- Cande V. Ananth, PhD, MPH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~; /archives/html/s-news/1998-03/msg00239.html (9,684 bytes)
18. Re: [S] strange p-value for Fisher exact's test (score: 1): Author: ananthcv@epi.umdnj.edu (Cande V Ananth); Date: Mon, 23 Mar 1998 16:07:35 -0500; Once again, it works fine using S-Plus ver 3.4, operating on SunOS 5.3 (Sun SPARC). The bug, I believe, is is in S-Plus 4.0. fisher.test(rbind(c(1, 1), c(91, 98))) Fisher's exact test data: rbind(c(; /archives/html/s-news/1998-03/msg00241.html (10,387 bytes)

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