[R] Quick advice on loading packages

2013-10-21 Thread Data Analytics Corp.
t;scales"), repos = "c:\\temp")} There will be many more than just the two I listed. All the zip files are in a Windows directory c:\temp. Will this work? Thanks, Walt ____ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 0853

[R] Formula documentation

2013-10-09 Thread Data Analytics Corp.
ation I'm planning. Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyti

Re: [R] melting a data frame

2013-09-08 Thread Data Analytics Corp.
. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com _ On 9/8/2013 10:06 AM, John Fox wrote: Dear Walt and A.K

[R] melting a data frame

2013-09-08 Thread Data Analytics Corp.
(which is why I'm referring to what I want to do as "melting")? It seems that there should be a simple way to do this. I used a for loop which worked, but I want to see if there's a more efficient way. Thanks, Walt Walter R. Paczkowski, Ph.D. Dat

[R] pattern matching

2013-01-07 Thread Data Analytics Corp.
Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com __ R-help@r-project.org mai

[R] listing all test functions in base R

2013-01-02 Thread Data Analytics Corp.
inking of a regular expression statement but I'm not sure how this would work for functions. Or is there a list already available? Any suggestions? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ___

[R] Analysis of Means in R

2012-10-04 Thread Data Analytics Corp.
Hi, Does anyone know of a package for doing Analysis of Means in R? Or have any functions they would like to share? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609

[R] multiple comparison tests using medians

2012-07-30 Thread Data Analytics Corp.
nks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com __ R-help@r-project.org mailing

[R] median comparison tests

2012-07-19 Thread Data Analytics Corp.
uch a median comparison test in R? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscor

[R] Date formats

2012-06-19 Thread Data Analytics Corp.
nks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com __ R-help@r-project.o

[R] using the system command

2011-09-28 Thread Data Analytics Corp.
g works fine. But of course I don't want to do this. Any suggestions as to what I'm doing wrong? Why the error message? Also, the StatTransfer program sometimes fails to close so if I repeatedly call my function I'll have multiple occurrences of StatTrans

[R] installing Rgraphviz

2011-07-20 Thread Data Analytics Corp.
I had to change the path variable. Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscor

[R] scaling advice

2011-07-15 Thread Data Analytics Corp.
t they all sum to zero? Any suggestions? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyti

[R] finding the intersection of two vectors

2011-07-06 Thread Data Analytics Corp.
Any suggestions as to how I can find that price point in R? Any functions that help? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataan

[R] Estimating choice models at the individual level

2011-06-21 Thread Data Analytics Corp.
ients. Sawtooth's program for MaxDiff can do this. Is there any R package to do an HB estimation for a discrete choice (logit) model? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (

[R] Bayesian Belief Networks in R

2010-12-23 Thread Data Analytics Corp.
Hi, Does anyone know of a package for or any implementation of a Bayesian Belief Network in R? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w

[R] Bayesian Belief Networks

2010-12-23 Thread Data Analytics Corp.
Hi, Does anyone know of a package for or any implementation of a Bayesian Belief Network in R? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w

[R] finding row and column names of a matrix

2010-10-08 Thread Data Analytics Corp.
has one or more cells with NAs. Any suggestions? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com

Re: [R] reading a text file, one line at a time

2010-08-15 Thread Data Analytics Corp.
Hi, This seems like a good solution. I was concerned about the time taken up reading one at a time. If a chuck can be read in each time, then that should be the way for me to handle the problem. Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44

[R] reading a text file, one line at a time

2010-08-15 Thread Data Analytics Corp.
R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com _ -- Walter R. Paczkowski

[R] viewing function code

2010-05-21 Thread Data Analytics Corp.
Hi, I want to view the code for the function confint in the stats package. Typing just confint doesn't work. How can I view the code? Thanks, Walt Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 __

[R] cross-over designs

2009-10-28 Thread Data Analytics Corp.
different order. How can I do an ANOVA analysis on a cross-over design with only two treatments. This is also a balanced design Thanks, Walt -- Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936

[R] .Rprofile file

2009-10-01 Thread Data Analytics Corp.
of R can access (I would imagine so)? Thanks, Walt -- Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 w...@dataanalyticscorp.com www.dataanalyticscorp.com

Re: [R] RODBC problem

2009-09-24 Thread Data Analytics Corp.
Schalk, This worked. Thanks for the hint. Walt Schalk Heunis wrote: Walt I get the same message using R2.9.2 on Vista. Using sqlFetch(con,'Sheet1') seems to however. HTH Schalk Heunis On Thu, Sep 24, 2009 at 6:23 PM, Data Analytics Corp. wrote: Hi, I'm attemp

[R] RODBC problem

2009-09-24 Thread Data Analytics Corp.
he 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 dataanalyt...@earthlink.net www.dataanalyticscorp.com _

[R] Emacs and ESS help

2009-09-18 Thread Data Analytics Corp.
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 dataanalyt...@earthlink.net www.dataanalyti

[R] ggplot2 and mtext question

2009-08-23 Thread Data Analytics Corp.
-- Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 dataanalyt...@earthlink.net www.dataanalyticscorp.com __ R-help@r-project.org

[R] getting dates from a ts object

2009-08-12 Thread Data Analytics Corp.
. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 dataanalyt...@earthlink.net www.dataanalyticscorp.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman

[R] Multiple graphs

2009-07-27 Thread Data Analytics Corp.
being overwritten. How do I get all six in separate windows, ready for 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

[R] correspondence analysis question

2009-06-26 Thread Data Analytics Corp.
that I can develop groups of attributes for each segment? I'd like to be able to have a list of attributes for each segment and a weight on how important (close?) an attribute is for that segment. Any suggestions? Thanks, Walt -- ____ Walter R. Paczkowski, Ph.

[R] R, Shapley Values and TURF

2009-02-24 Thread Data Analytics Corp.
hanks, Walt -- Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733 dataanalyt...@earthlink.net www.dataanalyticscorp.com __ R-h

[R] Package for TURF analysis

2008-08-06 Thread Data Analytics Corp.
Hi, Does anyone know of an R package or set of functions for doing Total Unduplicated Reach and Frequency (TURF) analysis? This is somewhat popular in the advertising area. Thanks, Walt -- Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane

[R] Multiple comparisons and letter assignments

2008-02-04 Thread Data Analytics Corp.
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