search for: dataanalytics

...uot; Any advise as to why and how to fix it? What's the syntax error that I'm just not seeing? Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com

Good morning, Does anyone know of a package or function to do a beta regression? Thanks, Walt Paczkowski _________________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733

Good morning, Is it possible to open an html file using IE but from within R? I wrote a small function to generate tables in html but I'd like to write another function to call IE and open the html file. Thanks, Walt Paczkowski ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733

...copying? By the way, is the a way to create a PowerPoint deck directly in R the way you can in S-Plus? Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com

Good morning, I'd like to estimate a simple multinomial logit model in R (not a McFadden conditional logit). For instance, I'd like to estimate the probability of someone having one of eight titles in a company with the independent variables being the company characteristics. A binary logit is well documented. What about the multinomial? Thanks, Walt Paczkowski

...function that works well, but now I need to calculate Shapley Values. Any help with is is appreciated. Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com

...tc.) to the bottom of a graph. How can such notes be added to the bottom of a graph when using ggplot2? Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com

...tata, SAS, etc.)? I'm running Windows Vista on a Thinkpad. Any and all help is deeply appreciated. Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com

Hi, I'm hoping someone has a suggestion for handling a simple problem. A client gave me a comma separated value file (call it x.csv) that has an id and name and address for about 25,000 people (25,000 records). I used read.table to read it, but then discovered that there are stray carriage returns on several records. This plays havoc with read.table since it starts a

>Message: 41 >Date: Sun, 08 Jan 2006 13:52:33 +1100 > From: paul sorenson <sourceforge@metrak.com> >Subject: Re: [R] Wikis etc. >To: Frank E Harrell Jr <f.harrell@vanderbilt.edu>, r-help > <r-help@stat.math.ethz.ch> >Message-ID: <43C07E71.3040303@metrak.com> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Frank E Harrell Jr

Oops, realized that I omitted the version of R used: Software: R - 1.9.1 installed from RPMs; OS: Linux Fedora Core I Machine: laptop with 128 MB RAM /Arin [[alternative HTML version deleted]]

Dear List: This is in search of advices/opinions for a lecture presentation on R. I have this presentation scheduled on Saturday (16-October-2004); the topic is "introduction to R". The audience is a group of researchers and scholars who have either never used R/are beginning to use R, but otherwise have used a package called limdeb, and SPSS. There is also a request to cover Rgnumeric,

Hi All: I am interested in tools available in R that will enable me to run analysis of case crossover studies. I searched the web (http://www.google.com), and found that a tool called "funfit" was available for Splus. Searching the R archives, I also found mention of a "funfit" library. However, when I searched in CRAN, I could not find it. Is "funfit" now part of

...ow. How can I use my editor but be able to continue using R after I close the editor? What extra setting am I missing? Thanks, Walt Paczkowski ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 www.dataanalyticscorp.com [[alternative HTML version deleted]]

Hi, I'm hoping someone has some insight about sample size and logit estimation that could help me. I inherited a logit model from a client in the direct marketing area. The previous consultant used approximately 143,800 observations in the training data set, of which only 50 (0.03%) were the target ( = 1) value for the dependent variable. The

Good morning, I'm trying to write a function to assign the mean separation grouping letters to the factors of an experiment. A client wants this so I thought I'd write my own function for future use. But I'm having trouble doing it because I don't understand the logic of the assignment. As a general example, consider the following data and the results from SAS and its weak

Hi Jack: Based on what you wrote in your mail about your hypothesis, I recommend you "StatsRus" website by Prof Paul Johnson. It's an excellent collection of R code snippets, and a veritable online oyster containing pearls of his wisdom :). Here is the link: www.ku.edu/~pauljohn/R/Rtips.html This set of "R solutions" is focused on performances (action oriented

Good morning, I'd like to look at the code for the R function head. When I type just the word head, I get back function(x, ...) UseMethod("head") <environment: namespace:utils> I expected to see several lines of R code. Any suggestions? Thanks, Walt Paczkowski

Dear R-Gurus: This afternoon I was installing the "Hmisc" package. I use R in Linux (Fedora Core 1 (yarrow)) on a Compaq presario with 128 MB RAM laptop. Opening an R session as a root user (superuser), I issued install.packages("Hmisc") and waited. R downloaded the package, installation was going on, and on the standard output I could see that a list of

Hi All: A couple of weeks back, I asked a question on the list that I was invited to provide an introductory lecture on R to a group of academicians in Kolkata. I thank all of you who had generously guided me in providing me web links and words to the wise. Time to give back. I did the presentation on introduction to R and uploaded the presentation files at the following site: