search for: zembow

...T)), times=10) [1] 341 341 341 341 341 341 341 341 341 341 and noticed that sum(sample()) seems to be only evaluated once. How can I overcome this, so that I get a vector of values that correspond to independent throws of 10 dice each time? Thanks for your advice and suggestions. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...N 0-387-95232-2}, URL = {http://biostat.mc.vanderbilt.edu/twiki/bin/view/Main/RmS} } Can someone tell me how this is generated? I've noticed this in a few recent posts. I attempted: RSiteSearch("@BOOK") ?BOOK ?book but it didn't return anything useful. Thanks. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...of equation, or am I overlooking a more concise, 'canned' approach that's already been programmed? Any suggestions on simplifying this? Thanks for all your advice and help. -Kevin [1] An Introduction to Mathematical Statistics and its Applications, fourth ed., Larsen and Marx. Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...ject.org/Manual/ess.html#Microsoft-Windows-installation but they seem daunting. I'm not sure that Xemacs from cygwin can work with R installed alone. Can anyone confirm that I just have to follow these directions to have everything I want? Thank you all for your help and advice. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...having access to many or all of the problem solutions is important. Do you have any other recommendations for me in learning both R and stats? Is it an impossible quest to learn enough stats by myself to be useful in analyzing real data sets? Thanks so much for your advice and suggestions. Kevin Zembower Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University www.jhuccp.org

...I looked at all the other .test functions in the stats package, and didn't find one that computed results like the t.test for normal distributions. Is something similar to my 'manual' computations the way it's done in R, or have I overlooked something again? Thanks. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...ignette.html Depends what and how near, but might be something relevant there? Karl Dr Karl Ropkins Transport Studies | Environment | University of Leeds ------------------------------ Message: 2 Date: Tue, 12 Dec 2023 07:52:59 -0800 From: Bert Gunter <bgunter.4567 at gmail.com> To: Kevin Zembower <kevin at zembower.org> Cc: R-help email list <r-help at r-project.org> Subject: Re: [R] Advice on starting to analyze smokestack emissions? Message-ID: <CAGxFJbTox2EW5kaZ1Y3KS9=kvndjP-tWFzp8YThbuNLyQmARNg at mail.gmail.com> Content-Type: text/plain; charset="utf-8&...

...4.21 76 29 3 18-Aug-98 7 15.73 597 62.22 76 29 4 16-Sep-98 42 35.81 460 43.98 70 33 5 19-Oct-98 105 77.28 314 31.45 57 29 6 17-Nov-98 106 77.01 342 33.86 48 30 > Thanks for your suggestions and advice. I'm continuing to enjoy learning R. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...H0 at the 0.05 level of significance > Or am I again overlooking a canned procedure or an easier calculation using the t distribution. Thank you for your continued advice and help. -Kevin [1] An Introduction to Mathematical Statistics and its Applications, fourth ed., Larsen and Marx. Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...p=type&listtypes=1. These typically contain 10,000+ respondents and can have up to 800 fields. We currently analyze these datasets using Stata. Thanks for taking the time to think about and respond to this question. I'll summarize the answers in a later post for the archive. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...uspicious. I realize that these last two errors might be caused by the system RSiteSearch uses to form indicies, but we may want to suppress them until that organization gets them working correctly. Thanks for your efforts in setting up the RSiteSearch system; I use it all the time. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...marked <to be read again> should not appear between \csname and \endcsname. I've tried a variety of examples, but the error messages are the same. Can anyone point out my errors or mistakes? I've pasted in the full files below. Thanks so much for your help and advice. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139 ============================== sweaveexample.tex: ============================== \documentclass[a4paper...

...the months in which the average temperature is less than 65 (otherwise, it's a cooling degree day). I tried ifelse, but couldn't get it to work. What simple technique am I overlooking? Thanks so much for your help and suggestions, especially for your patience with a newbie. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...this would have worked, but it didn't: > df <- data.frame(chirps, temp) > chirps.res <- lm(chirps ~ temp, data=df) > predict(chirps.res, newdata=data.frame(chirps=18)) Can anyone tell me how to use predict() in this circumstance? Thanks for your help and advice. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...ecause it's not particularly useful? Thanks for your suggestions and advice. Also, if I'm executing this type of problem in R inefficiently, I'd appreciate suggestions. -Kevin [1] An Introduction to Mathematical Statistics and Its Applications, Larsen and Marx, fourth edition. Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

...y, in the same fashion that pnorm can compute probabilities using parameters of mean and sd. Using help.search for 'estimator' or 'sample mean' didn't turn up anything that I recognized. Any hints on where to go looking for this? Thanks for your help and advice. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139 [1] Introduction to Mathematical Statistics and its applications, Larsen and Marx, fourth ed., questio...

...here any pre-constructed tools in R for working with this data? Does the US 2000 census data itself come packaged in R? If there are no R tools, I'd welcome any suggestions on working with this data from anyone experienced with it. Thanks for your advice and suggestions for me. -Kevin Kevin Zembower Internet Services Group manager Center for Communication Programs Bloomberg School of Public Health Johns Hopkins University 111 Market Place, Suite 310 Baltimore, Maryland 21202 410-659-6139

Full_Name: Kevin Zembower Version: 2.6.2 OS: Windows XP Pro, ver 2002 SP2 Submission from: (NULL) (162.129.44.50) Noticed the following errors and artifacts when trying to install R 2.6.2-win32.exe on my Windows XP Pro version 2002 Service Pack 2 workstation. I first attempted to install it as the 'Administrator'...

Hello, I'm trying to create a data frame with three columns, one of which is a variable-length list. I tried: df <- data.frame(name = c("a", "b", "c"), type=c(1, 2, 3), rtn = c(list(1,2,3), list(4, 5,6), list(7,8,9, 10) ) ) This would be useful, for example, if the 'rtn' is a variable number of

...c("Missed meds", "Missed exercise"), values = c(20, 4) ) Note that this method then gets very close without the scale_shape_manual, too. Hope that helps. Tim > Date: Mon, 30 Oct 2023 20:55:17 +0000 > From: Kevin Zembower <kevin at zembower.org> > To: r-help at r-project.org <r-help at r-project.org> > Subject: [R] Missing shapes in legend with scale_shape_manual > Message-ID: > <0100018b825e8f7f-646d2539-f8b5-4e1a-afc3-5d29f961967f- > 000000 at email.amazonses.com> > &...