search for: statisticans

I apologize in advance for posting a question not related to R. I need references to papers that use multiple linear regression in an industrial application and also in a biological experiment. This is aimed to biologists/chemists (non-statisticans) so if anyone has written a brilliant paper where the use of multiple regression is important and also understandable to people with little knowledge of statistics and you like to be cited, please email me the reference off the list. To show the wide range of application I would like to have an ex...

...cially non-parametric and semi-parametric methods for complex survey and longitudinal data? Is there a book that someone recommend that covers these topics with R (or Stata) examples? My web-searches have not resulted in much except that these seem to be actively researched topics by some statisticans working on theory --- no packages mentions of software were found in the few (I recall only one) empirical examples found. Anupam. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/...

Hi *, is there a way to obtain some kind of p-value for a model fitted with RMA using the lmodel2 package? I know that p-values are discussed and criticized a lot and as you can image from my question I'm not very much of a statistican (only writing my bachelor thesis). As fare as I understood the confidence interval statistic correctly, a coefficient is regarded as statistically significant

I have been lurking in this list a while and searching in the archives to find out how one learns to write fast R code. One solution seems to be to write part of the code not in R but in C. However after finding a benchmark article (http://www.sciviews.org/other/benchmark.htm) I have been more interested in making the R code itself more efficient. I would like to find more info about this. I have

Hi, Could someone please suggest where I might find some instructions / tutorials / FAQs that describe how to create a frequency distribution and cumulative frequency distribution in R using different class withs. I have about a 2-million observations (distances between points ranging from sub-millimetre to about 400km, and I want to get a feel for how they are distributed). I'd like the

Hej Lennart, I would like to add one thing: Often, there already exists an R function that solves the problem at hand. Instead of writing your own function, search the help files [apropos(), help.search()]. What I some times find difficult though, is guessing what key words will produce relevant search hits... Mvh Sixten >>> <Lennart.Borgman at astrazeneca.com> 2004-02-17

I was wondering if there exists a function that automatically tries to detect the format of a datafile. E.g. if it is an ascii datafile, that it can detect appropriate defaults for the read.table() parameters. One could for example read the first 10 lines of the file and analyze the format of the first line in comparison with the others, count the number of dots, colons and semicolons, etc. More

Hi The Food and Agriculture Organization of the United Nations (FAO), based in Rome, is in urgent need of an econometrican/statistican. The candidate will be required to provide in the absence of primary information model-based estimates of elements of utilization that enter our Food Balance Sheets (see http://faostat3.fao.org/home/index.html#HOME). We are therefore looking for two candidates

Dear R People: I am using R for teaching purposes in a large classroom. Each computer has its own copy of R. However, every once in a while, about half of us will get thrown out of R, for no apparent reason. By the way, it has happened in other classrooms as well. Has anyone else run into this, please? If so, how have you solved this problem, please? Thanks in advance! R for Windows

Since 2008, Microsoft (formerly Revolution Analytics) staff and guests have written about R every weekday at the Revolutions blog (http://blog.revolutionanalytics.com) and every month I post a summary of articles from the previous month of particular interest to readers of r-help. In case you missed them, here are some articles related to R from the month of May: Many interesting presentations

Hi everyone, Could somebody explain to me what is the package/function for classification analysis. I am performing analysis of music files in the form of MIDI files. I end up with about 750 dependent variables from the analysis, I also have a number of independent/grouping variables that I set manually. What I would like is to be able to predict which group a particular MIDI files belongs to