similar to: Power of tests

Displaying 20 results from an estimated 3000 matches similar to: "Power of tests"

1998 Nov 19
2
Re: ESS & R data import problems
I have a similar question, I know about --vsize, but I use R under Emacs using ESS. I know there is an easy way to call R from ESS with command line options but I don't remember how. I can't find help on this in ESS documentation or in R documentation. Could someone please remind me how this is done. ------------------------------------ | Robert Denham | |
2000 Mar 03
1
anova question
I have a probably very naive question about the R anova/aov functions: I've found in several text books with descriptions of anova procedures that, in nested anova (specifying the model "X~A/B", B being a factor specifying treatments, and A groups of samples within each treatment), the mean square for "among treatments" is divided by the mean square "within treatment
1998 Nov 19
0
R data import problems
Excuse me, if the following is FAQ or nonsense, I'm new to R (and the list)! After trying to import a textfile of 184897 Bytes, R (v0.63.0 on Linux 2.0.35/DLD 5.4) gives the following error message: > read.table ("db.out") Error: heap memory (1953 Kb) exhausted [needed 150 Kb more] > Is there a possibility to increase
1999 Apr 21
0
varcomp?
Hello R experts, I haven't found anything like the S function 'varcomp' as described in W.N. Venables & B.D. Ripley's 'Modern Applied Statistics ...' for R; does something comparable exist for R, or is planned for future releases? More generally, are there libraries with post-anova test procedures, like Student-Newman-Keuls? Or do those of you who frequently use
1999 Jan 07
1
problems compiling R packages with Linux
Hello out there, my first try to install a package (e.g. ctest from CRAN) didn't succeed; looking at the error messages I think it must be a configuration problem of my machine, but as I'm not very experienced I would be glad if someone could give me a hint ... R's version is 0.63.0, my i386-Linux is kernel 2.0.35. I hadn't had problems to compile R, and R itself seems to work.
1999 Jan 28
2
time series analysis
Hello out there, in their "R Complements" to Modern Applied Statistics W. Venables and B. Ripley say that there is a lack of time series related functions in R compared to S plus. Looking at CRAN I didn't find much, too. As I have to learn something about +-basic ts analysis, e.g. spectral analysis, I would like to know whether somebody has developed a "unpublished" time
1999 May 05
1
ANOVA "ex post" Analysis
Hello everybody, shame on me if I have overlooked something (CRAN, StatLib), but I think I've searched carefully. Maybe it's just too obvious to see for me (happens frequently). Is a function available that extracts multiple comparison of means from objects produced by "aov()" ? Sorry if the term is not correct, I translated from german word by word ("Multiple
1999 Nov 02
1
R abnormal exit when plotting lm (PR#308)
<<insert bug report here>> I had a "abnormal" exit of R plotting a fitted linear model. here's the last few lines of the R session: ------------------------------------------------------------------- > plot(blstrhz.lm) Hit <Return> to see next plot: Hit <Return> to see next plot: Hit <Return> to see next plot: X Error of failed request: BadValue
2006 Apr 28
1
plot acf of several timeseries
Hello r-help, I have a couple of time-series of different length and I would like to produce a simple overview plot showing the autocorrelation functions of the series. The time-series are stored in a dataframe like this: > test.data item year value 1 xxx 1961 -1.09 2 xxx 1962 0.21 3 xxx 1963 -0.81 [trimmed] 8
1998 Nov 29
2
[Johannes Huesing <tmi0m0@sp2.power.uni-essen.de>] Media coverage
Johannes Huesing sent a message to stat-lisp-news at stat.umn.edu regarding an article in Linux-Magazin (German) on statistical software for Linux. I enclose excerpts. Can anyone summarize what was said about R in the article? If there is a web site for the article I would appreciate learning of the URL. I must admit, though, the my abilities in German are much less impressive than the
2006 Feb 15
0
readline() for passwords?
I don't like to have my password exposed by typing at all. I also don't like to enter it each time that I wish to open a database (or when I run scripts automatically across a Linux cluster). My solution has been to keep a file in my HOME directory containing the username and password for the databases. This file has read and write permission set so only I (and root) can read it; this is
2000 Jan 21
0
Bug list summary (automatic post)
================================================= This is an automated summary of the status of the R-bugs repository. Note that this may be neither complete nor perfectly correct at any given instance: Not all bugs are reported, and some reported bugs may have been fixed, but the repository not yet updated. Some bug fixes are difficult to verify because they pertain to specific hardware or
1999 Nov 07
1
Bug list summary (automatic post)
================================================= This is an automated summary of the status of the R-bugs repository. Note that this may be neither complete nor perfectly correct at any given instance: Not all bugs are reported, and some reported bugs may have been fixed, but the repository not yet updated. Some bug fixes are difficult to verify because they pertain to specific hardware or
1999 Dec 07
1
Bug list summary (automatic post)
================================================= This is an automated summary of the status of the R-bugs repository. Note that this may be neither complete nor perfectly correct at any given instance: Not all bugs are reported, and some reported bugs may have been fixed, but the repository not yet updated. Some bug fixes are difficult to verify because they pertain to specific hardware or
2001 Nov 18
1
Configuration: libpng needs zlib, but ...
I noticed that congigure reported libpng as "not found" although a recent version exists. Further looking into this issue told me, that the test failed because the test from R.m4 AC_CHECK_LIB(png, png_create_write_struct, [ BITMAP_LIBS="${BITMAP_LIBS} -lpng -lz" AC_DEFINE(HAVE_PNG) ], , ${LIBS}) ], AC_MSG_RESULT([no])) ]) did
2010 Dec 29
1
Problem applying Chi-square in R and Cochran's Recommendations
Sir, I have a problem here while applying chisquare test to the following Data ( below the subject of this mail) ...when I wanted to test the significance using three different free statistical packages, here R, EpiInfo and OpenEpi. *Only OpenEpi accepts the test based on Cochran's Recommendations. * R says " chi squared approximation may be incorrect." Does it mean the same as
2009 Jun 04
4
Cochran’s Q statistic
Does anyone know which package include the computation of Cochran’s Q statistic in R? jlfmssm [[alternative HTML version deleted]]
2007 Dec 07
4
mrblog rake task fails
Hi all, I''m trying to run the mrblog sample application but somehow the rake task fails: -- Los-Angeles:~/Projects/mrblog Ulf$ rake db:schema:load --trace (in /Users/Ulf/Projects/mrblog) rake aborted! Don''t know how to build task ''db:schema:load'' /opt/local/lib/ruby/gems/1.8/gems/rake-0.7.3/lib/rake.rb:1472:in `[]''
2009 Nov 18
1
Cochran's Theorem
I want to understand ANOVA better. But a few textbook that I have do not describe Cochran's Theorem in details. Could somebody recommend a book for me?
2008 May 14
0
Research assistant at University Bremen, Germany: Timeseries Analysis with R
Hi there, we are looking for a research assistant for a project on analysing timeseries in the field of educational research. We have timeseries of the subjective perception (I understand, I feel good, I am interested etc.) of 109 students (6 different courses, 26 to 72 hours of classroom teaching, 208 to 332 points of measurement). We want to do exemplary analysis of the interaction