Re: [R] 'R' Software Output Plagiarism

Your professor should immediately recognize that the quoted code is standard regression input/output and that the Urkund results in this case are without merit. > On Sep 22, 2015, at 7:27 AM, BARRETT, Oliver wrote: > > > Dear 'R' community support, > > > I am a

[R] Using choiceDes Package to Design MaxDiff?

I’m seeking to design a MaxDiff experiment that will have a number of blocks of this type: Which of these items is the most important? Which of these items is the least important? Item 1 Item 2 Item 3 Item 4 I’m seeking to use the choiceDes package

[R] Using choiceDes Package to Design MaxDiff?

I’m seeking to design a MaxDiff experiment that will have a number of blocks of this type: Which of these items is the most important? Which of these items is the least important? Item 1 Item 2 Item 3 Item 4 I’m seeking to use the choiceDes package

[R] Conjoint Package

I’m very glad to see the Conjoint Package for R. The documentation for it does not appear to specify methods for data acquisition. Are the cards to be individually scored by each respondent (most clients would rather see a choice-based methodology)? SurveyGizmo, an excellent online survey host

[R] Conjoint Package

I’m very glad to see the Conjoint Package for R. The documentation for it does not appear to specify methods for data acquisition. Are the cards to be individually scored by each respondent (most clients would rather see a choice-based methodology)? SurveyGizmo, an excellent online survey host

Re: [R] Decision Tree: Am I Missing Anything?

Bhupendrashinh, thanks again for telling me about RWeka. That made a big difference in a job I was working on this week. Have a great weekend. -Vik __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the

Re: [R] Decision Tree: Am I Missing Anything?

provides the ctree() method and has a unified plotting interface for ctree, rpart, and J48. hth, Z On Thu, 20 Sep 2012, Vik Rubenfeld wrote: Bhupendrashinh, thanks very much! I ran J48 on a respondent-level data set and got a 61.75% correct classification rate! Correctly Classified

[R] Decision Tree: Am I Missing Anything?

I'm working with some data from which a client would like to make a decision tree predicting brand preference based on inputs such as price, speed, etc. After running the decision tree analysis using rpart, it appears that this data is not capable of predicting brand preference. Here's the

Re: [R] Decision Tree: Am I Missing Anything?

Thanks! Here's the dput output: dput(test.df) structure(list(BRND = structure(c(1L, 12L, 16L, 17L, 18L, 19L, 20L, 21L, 22L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 13L, 14L, 15L), .Label = c(Brand 1, Brand 10, Brand 11, Brand 12, Brand 13, Brand 14, Brand 15, Brand 16, Brand 17, Brand 18,

Re: [R] Decision Tree: Am I Missing Anything?

will go for Weka and specifically C4.5 algorithm. You also have the RWeka package for it. Best Regards, Bhupendrasinh Thakre Sent from my iPhone On Sep 20, 2012, at 9:47 PM, Vik Rubenfeld v...@mindspring.com wrote: I'm working with some data from which a client would like to make

Re: [R] Decision Tree: Am I Missing Anything?

. Best Regards, Bhupendrasinh Thakre Sent from my iPhone On Sep 21, 2012, at 12:16 AM, Vik Rubenfeld v...@mindspring.com wrote: Bhupendrashinh, thanks very much! I ran J48 on a respondent-level data set and got a 61.75% correct classification rate! Correctly Classified Instances

[R] Does A Choice-Based Conjoint Study Have To Be Full Profile?

In a Conjoint study, it's difficult for respondents to evaluate more than 6 product attributes at a time. Some studies require more attributes. Often this is solved via the use of Adaptive Conjoint Analysis (ACA), in which the questionnaire is modified for each individual respondent as the

[R] Correct Place to Seek an R-Project Consultant?

I would like to find out how to apply commands found in the bayesm package, to analyze data gathered via a choice-based conjoint study. Is there a web resource where I can seek an R-Project consultant experienced in this, who I could hire to walk me through the appropriate bayesm commands to

[R] Can't Run Conjoint Package - Could not find function caFactorialDesign?

I'm trying to run the Conjoint package, and I receive the error: Error: could not find function caFactorialDesign I'm running R version 2.15.1 on Mac OS X. I have installed the Conjoint package with the Install Dependencies checkbox checked. I have clicked the Update All button in the R

Re: [R] Can't Run Conjoint Package - Could not find function caFactorialDesign?

the package with: library(conjoint) # not Conjoint before you try to use any of its functions? Sarah On Fri, Aug 3, 2012 at 1:23 PM, Vik Rubenfeld v...@mindspring.com wrote: I'm trying to run the Conjoint package, and I receive the error: Error: could not find function

Re: [R] Can't Run Conjoint Package - Could not find function caFactorialDesign?

] tools_2.15.1 Per your recommendation, I have read the Posting Guide, and have sent an email to the Maintainers of this packages as well. Best, -Vik On Aug 3, 2012, at 11:15 AM, Sarah Goslee wrote: Hi, On Fri, Aug 3, 2012 at 1:57 PM, Vik Rubenfeld v...@mindspring.com wrote: Thanks very much

Re: [R] Can't Run Conjoint Package - Could not find function caFactorialDesign?

Got it. Thanks so much for your help, Michael and Sarah! Best, -Vik On Aug 3, 2012, at 11:50 AM, R. Michael Weylandt wrote: On Fri, Aug 3, 2012 at 1:34 PM, Sarah Goslee sarah.gos...@gmail.com wrote: On Fri, Aug 3, 2012 at 2:23 PM, R. Michael Weylandt michael.weyla...@gmail.com wrote: With

[R] Newbie Correspondence Analysis Question

I'm experienced in statistics, but I am a first-time R user. I would like to use R for correspondence analysis. I have installed R (Mac OSX). I have used the package installer to install the CA package. I have run the following line with no errors to read in the data for a table:

Re: [R] Newbie Correspondence Analysis Question

Thanks very much. -Vik On Sep 26, 2010, at 9:45 AM, Chris Mcowen wrote: Have you loaded the library after installing it? Either use library(CA) Or Through the package manager tab Hth Sent from my iPhone On 26 Sep 2010, at 17:41, Vik Rubenfeld v...@mindspring.com wrote

[R] Storing CA Results to a Data Frame?

I am successfully performing a correspondence analysis using the commands: NonLuxury - read.table(/Users/myUserName/Desktop/nonLuxury.data.txt) ca(NonLuxury) I would like to store the results to a data frame so that I can write them to disk using write.table. I have tried

[R] Storing CA Results to a Data Frame?

[Sorry- somehow the first time I posted this it got attached to another thread -Vik] I am successfully performing a correspondence analysis using the commands: NonLuxury - read.table(/Users/myUserName/Desktop/nonLuxury.data.txt) ca(NonLuxury) I would like to store the

Re: [R] Storing CA Results to a Data Frame?

]] ## extract the rows data.frame auth.ca.rows - auth.ca.sum[[columns]] ## extract the columns data.frame write.csv(auth.ca.rows) ## write results to a .csv file write.csv(auth.ca.rows) ## HTH, Ista On Sun, Sep 26, 2010 at 6:10 PM, Vik Rubenfeld v...@mindspring.com wrote:, I am