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1. subsetting a data.frame by a list (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Thu, 29 Nov 2001 16:24:21 -0600
This is a simple question that I could not find good keywords to search through the archives. Let data <- data.frame( x = c(1,2,4,4,3,5,6), y = c(1,2,3,4,5,6,7) ) What I would like to do is change th
/archives/html/s-news/2001-11/msg00224.html (8,032 bytes)

2. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Thu, 29 Nov 2001 16:42:24 -0600
The answer to my question was instantaneous. Thanks! try: data$y[ data$x %in% c(1,4)] Tom Stockton
/archives/html/s-news/2001-11/msg00225.html (6,518 bytes)

3. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Fri, 30 Nov 2001 10:20:31 -0600
1. I will repost my original question. 2. Reposts the original solution that I posted. 3. Contains the correction of 2. 4. Contains the other solutions that I received after posting 2. Of course than
/archives/html/s-news/2001-11/msg00226.html (10,044 bytes)

4. glm - statistical question (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Sun, 9 Sep 2001 15:39:52 -0500
In order to test a submodel, Venables & Ripley, 2000, p 215, suggest a chi-square test. However, in many cases, the glm procedure will automatically change the number of observations in the submodel,
/archives/html/s-news/2001-09/msg00074.html (8,345 bytes)

5. glm - statistical question (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Mon, 10 Sep 2001 09:22:06 -0500
In order to test a submodel, Venables & Ripley, 2000, p 215, suggest a chi-square test. However, in many cases, the glm procedure will automatically change the number of observations in the submodel,
/archives/html/s-news/2001-09/msg00083.html (9,313 bytes)

6. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Mon, 10 Sep 2001 12:00:44 -0500
ok, since it was requested, I will post the answers by Professors Ripley and Venables. Right now I don't agree with everything that is said in there, probably becauase I am quite confused. ** From Pr
/archives/html/s-news/2001-09/msg00088.html (20,401 bytes)

7. unique for data.frames (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Sat, 4 Aug 2001 11:53:17 -0500
The function unique is only defined for vectors. I was wondering if anyone had extended for data.frames. Here is an example below to avoid any confusion. dat <- data.frame(x = c(1:4,1:2,1:4), y = c(1
/archives/html/s-news/2001-08/msg00036.html (7,451 bytes)

8. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Sat, 4 Aug 2001 13:54:13 -0500
I am posting the question at the end. Here are the answers that I Robert Anthony Canales suggested to paste the variables together and then using the uniqe command. Prof Brian Ripley mentioned that S
/archives/html/s-news/2001-08/msg00038.html (8,261 bytes)

9. substring with different formats (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Sat, 7 Jul 2001 13:35:11 -0500
Hello: I was wondering if anyone had extended the * substring * command to allow for something like this: x <- c("Alabama, Northern", "Alaska", "Georgia, Southern") unpaste( x, ",") [[1]] "Alabama" "
/archives/html/s-news/2001-07/msg00040.html (7,255 bytes)

10. substring with different formats (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Mon, 9 Jul 2001 22:16:04 -0500
I posted a question regarding extending the function substring. I will repeat my question and put the only response that I received. Q: I was wondering if anyone had extended the * substring * comman
/archives/html/s-news/2001-07/msg00058.html (8,470 bytes)

11. new solution to problem with unpaste (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Tue, 10 Jul 2001 12:35:58 -0500
Here is a self contained function that extends the function * unpaste * which was written by Samuel Buttrey. This works on your example but won't work for the more general case where the separator mi
/archives/html/s-news/2001-07/msg00067.html (9,948 bytes)

12. systems of non-linear reqression (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Mon, 4 Jun 2001 10:46:56 -0500
I am trying to solve the model y_t = f( x_t, a) + e_t, t=1,...,T where y_t is a two-dimensional vector, x_t is a two-dimensional vector, f is a know non-linear (two-dimensional) function, a is a set
/archives/html/s-news/2001-06/msg00027.html (7,552 bytes)

13. summary for regression with fixed effects (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Wed, 18 Apr 2001 15:30:12 -0500
I was wondering if someone had written a command to give summary() in a linear regression with fixed effects. Because I have 700 fixed effects, summary gives this very large output. I would want the
/archives/html/s-news/2001-04/msg00199.html (8,076 bytes)

14. analysis of proportions data (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Fri, 9 Mar 2001 15:35:01 -0600
This question relates to how to analyze proportions data, and given that I am correct in how to analyze it, what is the right way to implement it in Splus. I have a data set that looks something like
/archives/html/s-news/2001-03/msg00075.html (8,600 bytes)

15. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Sat, 10 Mar 2001 14:09:14 -0600
This is a summary to my earlier question on the analysis of proportion data. Thanks for all the people who sent me emails. I am including my post, an answer, and my comment to the answer. Thanks for
/archives/html/s-news/2001-03/msg00076.html (9,380 bytes)

16. Splus not starting-up (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Fri, 16 Mar 2001 18:21:06 -0600
I am running Splus 2000 on Windows 2000 and all of the I cannot get Splus 2000 to start. It gives me the Splus logo, then goes to the tip of the day, and then just hangs. If I go to the task manager,
/archives/html/s-news/2001-03/msg00139.html (7,171 bytes)

17. From: "Boylan, Richard" <rboylan@bus.olemiss.edu> (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Fri, 16 Mar 2001 19:06:17 -0600
Regarding my question when Splus will not start-up, the solution is to rename (or delete) the directory _Prefs. It works, thanks for the help.
/archives/html/s-news/2001-03/msg00140.html (6,404 bytes)

18. merging two data sets (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Thu, 22 Feb 2001 13:49:18 -0600
I need to combine two data sets and would like some suggestions on how to go about doing it. I understand that you may not want to take the time to read through the problem, but if you don't mind jus
/archives/html/s-news/2001-02/msg00188.html (7,662 bytes)

19. FW: merging two data sets (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Fri, 23 Feb 2001 09:19:12 -0600
I have not had time yet to check if this works, but I have already received a request for me to post any answers that I would have received to my question. I will look at this shortly and in the mean
/archives/html/s-news/2001-02/msg00195.html (18,867 bytes)

20. statistical question (score: 1)
Author: "Boylan, Richard" <rboylan@bus.olemiss.edu>
Date: Wed, 15 Nov 2000 17:30:33 -0600
This is mainly a statistical question, although it would be helpful to also S (or R) routine to solve the problem. Consider the problem: Z = a + b X + epsilon Y1 = d1 + e1 Z + delta1 Y2 = d2 + e2 Z +
/archives/html/s-news/2000-11/msg00163.html (6,710 bytes)

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