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?

: tempDes - tradeoff.des(20, 4, 50, 2, tempDesign.txt, 20, NULL, TRUE) …I get the same error. What is the correct way to use choiceDes to design a MaxDiff experiment of this kind? Thanks very much in advance to all for any thoughts or info! Best, -Vik [[alternative HTML version

[R] Using choiceDes Package to Design MaxDiff?

: tempDes - tradeoff.des(20, 4, 50, 2, tempDesign.txt, 20, NULL, TRUE) …I get the same error. What is the correct way to use choiceDes to design a MaxDiff experiment of this kind? Thanks very much in advance to all for any thoughts or info! Best, -Vik [[alternative HTML version

[R] Conjoint Package

info! Best, -Vik __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.

[R] Conjoint Package

(100, 50, 0) input that the Conjoint Package can use? Thanks very much in advance to all for any info! Best, -Vik __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

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

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

) ...I get an error message: Error in gsub(:, ., x, fixed = TRUE) : input string 18 is invalid in this locale What is the correct way to use the C5.0 method for class 'formula'? -Vik On Sep 21, 2012, at 4:18 AM, mxkuhn wrote: There is also C5.0 in the C50 package. It tends to have smaller

[R] Decision Tree: Am I Missing Anything?

with one branch. It looks to me like I'm doing everything right, and this data is just not capable of predicting brand preference. Am I missing anything? Thanks very much in advance for any thoughts! -Vik [[alternative HTML version deleted

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?

to further prune the tree so that I can present a chart that would fit on a single page or two? Thanks very much in advance for any thoughts. -Vik On Sep 20, 2012, at 8:37 PM, Bhupendrasinh Thakre wrote: Not very sure what the problem is as I was not able to take your data for run. You

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?

(data=experiment, type=orthogonal) Error: could not find function caFactorialDesign What could I be missing? Best, -Vik On Aug 3, 2012, at 10:28 AM, Sarah Goslee wrote: Hi Vik, You don't need to post to nabble and to the R-help list. Just skip the nabble step! Have you loaded

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

[R] Newbie Correspondence Analysis Question

that the following line should come next: ca(NonLuxury) Again, I get the error message: Error: could not find function ca What am I missing? Thanks very much in advance to all for any info. -Vik __ R-help@r-project.org mailing list https

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?

this? Thanks in advance to all for any info. -Vik __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained

[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

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

Thanks very much for this great info, Ista. Best, -Vik On Sep 26, 2010, at 12:10 PM, Ista Zahn wrote: Hi Vik, I suggest reading through some of the introductory documentation. R has several classes of objects, including matrix, list, data.frame etc. and a basic understanding of what

[R] Using optimize with array variables

Hello, I am trying to figure out how to use optimize() with array variables as inputs. I have a for loop in the function definition: SS - function(int,slo,x,y){ for(i in 1:length(x)) ((int+slo*x[i])-y[i])^2-squares[i] sum(squares)-sum_squares output_txt = c (The sum of squares is, sum_squares)

Re: [R] Using optimize with array variables

again. On Thu, Oct 1, 2009 at 1:06 PM, Charles C. Berry cbe...@tajo.ucsd.eduwrote: On Thu, 1 Oct 2009, Vik wrote: Hello, I am trying to figure out how to use optimize() with array variables as inputs. I have a for loop in the function definition: SS - function(int,slo,x,y){ for(i in 1

[R] Error: file association for 'doc\html\index.html' not available or invalid

for further diagnosis. I have uninstalled, deleted the R package directories, and checked the registry for metions of \R\, but the problem remains. I can't think of any unusual changes I made before this problem arose. Any help would be appreciated. Best regards, Jon Olav Vik