[R] lambda, uncertainty coefficient ( Somers D)
Dear colleagues in R, Has anybody implemented the 1) (Goodman Kruskal) lambda or the 2) (Thiel's) uncertainty coefficient statistics (in the asymmetric and symmetric forms), or is anyone aware that they might reside in some package? A search in the R archives does indicate that they are (somehow) part of the CoCo package, but I would rather not start learning how to transform my data into CoCo-format in order to access these functions, regardless of whether the CoCo versions are actually intended for calculating the actual statistic or for some other package internal purposes, as may sometimes be the case. Furthermore, it appears to me that the 'somers2' function in the Hmisc package applies Somers' D only to 2x2 and not larger tables. Am I mistaken, or does there exist somewhere else an implementation of the Somers' D statistic for the more general RxC tables? This was queried in 1999, but no response seemed then to be forthcoming. Thanks and regards, -Antti Arppe -- == Antti Arppe - Master of Science (Engineering) Researcher doctoral student (Linguistics) E-mail: [EMAIL PROTECTED] WWW: http://www.ling.helsinki.fi/~aarppe __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] lambda, uncertainty coefficient ( Somers D)
Antti Arppe wrote: Dear colleagues in R, Has anybody implemented the 1) (Goodman Kruskal) lambda or the 2) (Thiel's) uncertainty coefficient statistics (in the asymmetric and symmetric forms), or is anyone aware that they might reside in some package? A search in the R archives does indicate that they are (somehow) part of the CoCo package, but I would rather not start learning how to transform my data into CoCo-format in order to access these functions, regardless of whether the CoCo versions are actually intended for calculating the actual statistic or for some other package internal purposes, as may sometimes be the case. Furthermore, it appears to me that the 'somers2' function in the Hmisc package applies Somers' D only to 2x2 and not larger tables. Am I mistaken, or does there exist somewhere else an implementation of the Somers' D statistic for the more general RxC tables? This was queried in 1999, but no response seemed then to be forthcoming. Somers' D is for a 2-category response variable. X may have any number of categories as long as they are ordered. Frank Harrell Thanks and regards, -Antti Arppe -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] lambda, uncertainty coefficient ( Somers D)
On Tue, 2006-04-18 at 16:40 +0300, Antti Arppe wrote: Dear colleagues in R, Has anybody implemented the 1) (Goodman Kruskal) lambda or the 2) (Thiel's) uncertainty coefficient statistics (in the asymmetric and symmetric forms), or is anyone aware that they might reside in some package? A search in the R archives does indicate that they are (somehow) part of the CoCo package, but I would rather not start learning how to transform my data into CoCo-format in order to access these functions, regardless of whether the CoCo versions are actually intended for calculating the actual statistic or for some other package internal purposes, as may sometimes be the case. Furthermore, it appears to me that the 'somers2' function in the Hmisc package applies Somers' D only to 2x2 and not larger tables. Am I mistaken, or does there exist somewhere else an implementation of the Somers' D statistic for the more general RxC tables? This was queried in 1999, but no response seemed then to be forthcoming. Thanks and regards, -Antti Arppe Antti, Under a separate e-mail to you, I have sent a text file containing R code for the above and other related association measures. If anyone else is interested in these, please let me know and I will be more than happy to forward them on. I did not want to consume a lot of bandwidth here. HTH, Marc Schwartz __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] lambda, uncertainty coefficient ( Somers D)
On Tue, 2006-04-18 at 10:30 -0500, Marc Schwartz (via MN) wrote: On Tue, 2006-04-18 at 16:40 +0300, Antti Arppe wrote: Dear colleagues in R, Has anybody implemented the 1) (Goodman Kruskal) lambda or the 2) (Thiel's) uncertainty coefficient statistics (in the asymmetric and symmetric forms), or is anyone aware that they might reside in some package? A search in the R archives does indicate that they are (somehow) part of the CoCo package, but I would rather not start learning how to transform my data into CoCo-format in order to access these functions, regardless of whether the CoCo versions are actually intended for calculating the actual statistic or for some other package internal purposes, as may sometimes be the case. Furthermore, it appears to me that the 'somers2' function in the Hmisc package applies Somers' D only to 2x2 and not larger tables. Am I mistaken, or does there exist somewhere else an implementation of the Somers' D statistic for the more general RxC tables? This was queried in 1999, but no response seemed then to be forthcoming. Thanks and regards, -Antti Arppe Antti, Under a separate e-mail to you, I have sent a text file containing R code for the above and other related association measures. If anyone else is interested in these, please let me know and I will be more than happy to forward them on. I did not want to consume a lot of bandwidth here. HTH, Marc Schwartz [Replying to r-help only] Antti, Each of my e-mails directly to you, including the code file, using either: [EMAIL PROTECTED] (located on your web page) or [EMAIL PROTECTED] (used here) have bounced, with access denied/user unknown errors. Can you please confirm a correct e-mail address? Thanks, Marc __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
