search for: qwilcox

The function 'wilcox.test' in R and S gives (almost) identical results (see below). 'qwilcox' however, does not: > qwilcox(p,5,5) p: 0.025 0.975 -------------------- R> 3 22 S> 18 37 I originally wanted to ask a questions, but then I found the answer. Given the confusion I run into, I wonder if this experience is worth reporting. The S-Plus qu...

Hi, I would like to do a MannWitney test. Can anyone help me with the propper command? Thanks, Margarida

Full_Name: Mark J. Lamias Version: 1.7.0 OS: Windows 2000 Pro Submission from: (NULL) (65.222.84.72) I am running the qwilcox procedure and it is producing incorrect results. For example, dwilcox(.025, 3, 5) should equal 6, but it is equal to 1. Similarly, dwilcox(.025, 3, 6) should equal 7, but it equals 2. The critical values are not set being returned with the correct values. I've verified this with a program t...

...lations > have a total of `m` members, then this implementation runs slightly slower > for m < 20, and much slower for 50 < m < 100. However, this implementation > works significantly *faster* for m > 200. The breakpoint is precisely when > each population has a size of 50; `qwilcox(0.5,50,50)` runs in 8 > microseconds in the current version, but `qwilcox(0.5, 50, 51)` runs in 5 > milliseconds. The new version runs in roughly 1 millisecond for both. This > is probably because of internal logic that requires many more `free/calloc` > calls if either population is la...

...1:2800), 160, 160) ) user system elapsed 0.810 0.060 0.868 > system.time( dwilcox( (1:28000), 210, 210) ) user system elapsed 17.700 0.600 18.313 RAM: ~ 700MB > system.time( pwilcox( 21000, 211, 211) ) user system elapsed 18.110 0.640 18.762 > system.time( a <- qwilcox( 0.43, 200, 400) ) ^C Timing stopped at: 14.39 1.43 18.794 RAM: > 1.4GB at interrupt time > system.time( dwilcox(800, 800, 80) ) user system elapsed 0.140 0.000 0.144 > system.time( dwilcox( (1:2800), 80, 80) ) user system elapsed 0.010 0.000 0.007 > system.time( dw...

...assume the two populations have a total of `m` members, then this implementation runs slightly slower for m < 20, and much slower for 50 < m < 100. However, this implementation works significantly *faster* for m > 200. The breakpoint is precisely when each population has a size of 50; `qwilcox(0.5,50,50)` runs in 8 microseconds in the current version, but `qwilcox(0.5, 50, 51)` runs in 5 milliseconds. The new version runs in roughly 1 millisecond for both. This is probably because of internal logic that requires many more `free/calloc` calls if either population is larger than `WILCOX_MA...

...R#4212) > To: r-devel@stat.math.ethz.ch > Cc: R-bugs@biostat.ku.dk > Message-ID: <200309172320.h8HNKJJH008077@pubhealth.ku.dk> > > Full_Name: Mark J. Lamias > Version: 1.7.0 > OS: Windows 2000 Pro > Submission from: (NULL) (65.222.84.72) > > > I am running the qwilcox procedure and it is producing incorrect results. For > example, dwilcox(.025, 3, 5) should equal 6, but it is equal to 1. Similarly, > dwilcox(.025, 3, 6) should equal 7, but it equals 2. The critical values are > not set being returned with the correct values. I've verified this w...

Does anyone have a piece of code or know how I can use R to generate a table of critical values for the Mann-Whitney (aka Wilcoxon Rank Sum) test. Ideally, I'd like a table that contains the critical values for any two samples of size 3 through 30. I could use Monte Carlo simulation or the normal approximation when n1 and n2 are greater than, 10, but I figured someone may know how to

...-g -I../include -I../../src/include -c qtukey.c -o qtukey.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c dwilcox.c -o dwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c pwilcox.c -o pwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c qwilcox.c -o qwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c rwilcox.c -o rwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c dsignrank.c -o dsignrank.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c psignrank.c -o psignrank.o gcc -ieee_with...

...nclude -c pnt.c cc -ieee_with_inexact -g -I../../src/include -c ptukey.c cc -ieee_with_inexact -g -I../../src/include -c qtukey.c cc -ieee_with_inexact -g -I../../src/include -c dwilcox.c cc -ieee_with_inexact -g -I../../src/include -c pwilcox.c cc -ieee_with_inexact -g -I../../src/include -c qwilcox.c cc -ieee_with_inexact -g -I../../src/include -c rwilcox.c ar cr ../lib/libmath.a mlutils.o d1mach.o i1mach.o fmax2.o fmin2.o fmod.o fprec.o fround.o ftrunc.o sign.o fsign.o fsquare.o fcube.o imax2.o imin2.o chebyshev.o logrelerr.o lgammacor.o gammalims.o gamma.o lgamma.o beta.o lbeta.o pol...

...lude -I../../src/include -c qtukey.c -= o = qtukey.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c dwilcox.c = -o = dwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c pwilcox.c = -o = pwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c qwilcox.c = -o = qwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c rwilcox.c = -o = rwilcox.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c dsignrank.= c -o = dsignrank.o gcc -ieee_with_inexact -g -I../include -I../../src/include -c psignrank.= c -o = psignrank....

.../../src/include -c ptukey.c -o ptukey.o gcc -g -O2 -I../include -I../../src/include -c qtukey.c -o qtukey.o gcc -g -O2 -I../include -I../../src/include -c dwilcox.c -o dwilcox.o gcc -g -O2 -I../include -I../../src/include -c pwilcox.c -o pwilcox.o gcc -g -O2 -I../include -I../../src/include -c qwilcox.c -o qwilcox.o gcc -g -O2 -I../include -I../../src/include -c rwilcox.c -o rwilcox.o gcc -g -O2 -I../include -I../../src/include -c dsignrank.c -o dsignrank.o gcc -g -O2 -I../include -I../../src/include -c psignrank.c -o psignrank.o gcc -g -O2 -I../include -I../../src/include -c qsignrank.c -o...

.../../src/include -c ptukey.c -o ptukey.o gcc -g -O2 -I../include -I../../src/include -c qtukey.c -o qtukey.o gcc -g -O2 -I../include -I../../src/include -c dwilcox.c -o dwilcox.o gcc -g -O2 -I../include -I../../src/include -c pwilcox.c -o pwilcox.o gcc -g -O2 -I../include -I../../src/include -c qwilcox.c -o qwilcox.o gcc -g -O2 -I../include -I../../src/include -c rwilcox.c -o rwilcox.o gcc -g -O2 -I../include -I../../src/include -c dsignrank.c -o dsignrank.o gcc -g -O2 -I../include -I../../src/include -c psignrank.c -o psignrank.o gcc -g -O2 -I../include -I../../src/include -c qsignrank.c -o...

...-I../include -c dnbeta.c gcc -g -O2 -I../include -c pnbeta.c gcc -g -O2 -I../include -c pnf.c gcc -g -O2 -I../include -c pnt.c gcc -g -O2 -I../include -c ptukey.c gcc -g -O2 -I../include -c qtukey.c gcc -g -O2 -I../include -c dwilcox.c gcc -g -O2 -I../include -c pwilcox.c gcc -g -O2 -I../include -c qwilcox.c gcc -g -O2 -I../include -c rwilcox.c ar cr ../lib/libmath.a mlutils.o d1mach.o i1mach.o fmax2.o fmin2.o fmod.o fprec.o fround.o ftrunc.o sign.o fsign.o fsquare.o fcube.o imax2.o imin2.o chebyshev.o logrelerr.o lgammacor.o gammalims.o gamma.o lgamma.o beta.o lbeta.o polygamma.o choose.o sn...

Problem compiling R. version: 0.64.2 machine: SGI O2 OS: IRIX6.5 CC cc FC f77 MAKE GNU make 3.75 Here is part of the the output for make. make[2]: Leaving directory `/usr/people/faculty/math/mgass/stage/R/R-0.64.2/src/include' make[2]: Entering directory `/usr/people/faculty/math/mgass/stage/R/R-0.64.2/src/appl' cc -g -OPT:IEEE_NaN_inf=ON -I../include