[R] M logit/problems

2015-01-10 Thread Lee van Cleef
Dear R users, 1) My problem in short: Mlogit cannot calculate certain conditional models. 2) My database: The target was a logistical regression analysis and a probability function which should include generic coefficients and alternative-specific ones. The database was a survey, the

Re: [R] R for organization

2015-01-10 Thread Uwe Ligges
On 10.01.2015 15:42, Vlada Polovinska wrote: Hello, I am interesting in R usage in a big organization. It is always top question about how it is safe to use R working with sensitive data. Because of this I have decided to write to your team. Actually you wrote to a public mailng list with

Re: [R] R package creation: Confused about how to handle text data

2015-01-10 Thread Uwe Ligges
You do not want to access these data files by standard mechnisms, and that's what the ./data folder is good for. See Writing R Extensions, it suggests to use the ./extdata directory in your case, then the data is unchanged and you can access those data by your own functions. Best, Uwe Ligges

[R] R for organization

2015-01-10 Thread Vlada Polovinska
Hello, I am interesting in R usage in a big organization. It is always top question about how it is safe to use R working with sensitive data. Because of this I have decided to write to your team. I am waititng that you can help me to understand what are the main reasons why some organizations

[R] Fwd: ad. Amelia Package for R: Error; contrasts can be applied only to factors with 2 or more levels

2015-01-10 Thread Joanna Cieslak
Hello, I am trying to use the multiple imputation method to replace NAs in the columns denoting net recalled salary (variable q32) from the file downloadable here: http://www.ads.org.pl/pobieranie-zbioru-danych.php?id=91 It is a survey with 17497 observations of 1681 variables, so I am reducing

[R] R vs. RStudio?

2015-01-10 Thread Boris Steipe
Could someone kindly enlighten me whether there are currently advantages to use R Studio vs. the normal R GUI? On the Mac I can't seem to find anything compelling, on Windows (which I don't use myself) I noticed last year that there seems to be no syntax highlighting available for the R GUI but

Re: [R] R vs. RStudio?

2015-01-10 Thread billy am
I concur. Pls try it. -- | http://billyam.com || http://use-r.com || http://shinyserver.com (BETA) SAS Certified Base Programmer for SAS 9 Oracle SQL Expert(11g) On Sun, Jan 11, 2015 at 10:47 AM, John Sorkin

Re: [R] R vs. RStudio?

2015-01-10 Thread John Sorkin
I urge you to try it. John John David Sorkin M.D., Ph.D. Professor of Medicine Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine Baltimore VA Medical Center 10 North Greene Street GRECC (BT/18/GR) Baltimore, MD

Re: [R] R vs. RStudio?

2015-01-10 Thread Bert Gunter
That is what websites are for. Go to rstudio.com and make your own judgment . I have found that they provide much useful functionality above and beyond R's bare bones GUI. Bert On Saturday, January 10, 2015, Boris Steipe boris.ste...@utoronto.ca wrote: Could someone kindly enlighten me whether