creative statistics

this was also posted to sci.stat.math what is the difference between these newsgroups? I'm working on an online test at: http://www.dial020.com/smurray/selfbuildingtest The test lets people answer questions made up by other people who took the test before. Every test is 9 questions from three

Re: Winsorisation: who was Winsor ?

On Fri, 27 Oct 2000 12:24:41 -0400, Bob Wheeler <[EMAIL PROTECTED]> wrote: > Charles Payne Winsor (It might be "Paine".) > > He died in the early 50's. There was a biography > in the American Statistician, I think. > > Rich Ulrich wrote: > > < snip, my post, including where I misspelled /misty

Re: Error in polls, Part 2

uh-oh, what am I saying ... On Fri, 27 Oct 2000 14:21:36 -0400, Rich Ulrich <[EMAIL PROTECTED]> wrote: < snip, cite > > No, you have it wrong. Think about the case where the two > candidates/options add exactly to 100% -- the "4% error" is exactly > the same 4% for both, since one goes down e

Re: Stat pkg for old Mac

There is always XLispStat, and the graphical front-ends, ViSta and ARC. Why pay more when there is perfectly adequate and exceptional software available? best, -tony -- A.J. RossiniRsrch. Asst. Prof. of Biostatistics BlindGlobe Networks (home/default) [EMAIL P

Re: Combining histograms

On 27 Oct 2000 15:02:50 GMT, [EMAIL PROTECTED] (Dubinse) wrote: > I have the need to combine a number of data sets that are in the > form of histograms where the class marks and boundaries may vary > from data set to data set. The data represents numerical counts > as a function of particle size

Re: Error in polls, Part 2

On 27 Oct 2000 07:26:43 -0700, [EMAIL PROTECTED] (Wolfgang Rolke) wrote: < snip, about polling ... > > A very nice > discussion of the issues involved can be found at > http://slate.msn.com/framegame/entries/00-10-26_92147.asp . An explanation of the

Re: Winsorisation: who was Winsor ?

- Forwarded message from Bob Wheeler - Charles Payne Winsor (It might be "Paine".) He died in the early 50's. There was a biography in the American Statistician, I think. Rich Ulrich wrote: > > > ("Could anyone suggest references for me ...?" would be a gentler way > to request assis

Re: Winsorisation: who was Winsor ?

Charles Payne Winsor (It might be "Paine".) He died in the early 50's. There was a biography in the American Statistician, I think. Rich Ulrich wrote: > > On Thu, 26 Oct 2000 20:42:02 +0200, Damion Milne > <[EMAIL PROTECTED]> wrote: > > > I would like to add some biographical information on Wi

Combining histograms

I have the need to combine a number of data sets that are in the form of histograms where the class marks and boundaries may vary from data set to data set. The data represents numerical counts as a function of particle size on an asummedly continuoous scale. I want to combine some of the data to

Re: Stat pkg for old Mac

don't forget to look at all that is available online for doing analysis ... http://members.aol.com/johnp71/javastat.html check out specific routines or ... click on the jump to free software ... some works with macs = Instructio

RE: Stat pkg for old Mac

Lee and All -- I just visited the www.duxbury.com site yesterday, and I think I remember they showed older _student_ versions. You might try there also. -- Chris Chris Olsen George Washington High School 2205 Forest Dr. S.E. Cedar Rapids, IA 52403 (319)-398-2161 [EMAIL PROTECTED] >

Re: Winsorisation: who was Winsor ?

On Thu, 26 Oct 2000 20:42:02 +0200, Damion Milne <[EMAIL PROTECTED]> wrote: > I would like to add some biographical information on Winsor to my slides > on the winsorisation technique, which deals with outliers in a > distribution. > > Winsorisation is described in Afifi and Azen 1979, by Academ

Re: Stat pkg for old Mac

JMP version 3 would run on this system as well. Try sales at www.sas.com to see if JMP 3.2.6 is still available. "David J Firth" <[EMAIL PROTECTED]> wrote in message 8tarcm$das$[EMAIL PROTECTED]">news:8tarcm$das$[EMAIL PROTECTED]... > > Following my policy of reuse and recycle, I'm using an old Ma

Statistics problem (HELP!)

Dear Colleagues, Most of my work is descriptive and qualitative, and the statistical procedures I typically use are simple things like averages and standard deviations. However, a situation has arisen requiring more statistical knowledge than I possess, in which case I hope that someone out

Error in polls, Part 2

Hallo again, A couple of days ago I wrote a message concerning the polls for the presidential campaign that are currently being published on a daily basis, and especially the usual +-4% error and how it is computed. I received three replies pointing out some of the difficulties such as the fa

Re: fast calculation of normal distribution ...

> I presume that you want the density of a multivar normal distrib. You > don't calculate the inverse; you just need the quadratic form. I think > that Searle's matrix algebra book gives the computations. off hand, for > the quad form x'A-1x I'd get the cholesky factor of A = LL' and solve >

Re: fast calculation of normal distribution ...

Alan Miller schrieb: > Mention of the covariance matrix suggests that it is > the multivariate normal which is wanted, not the simple > univariate normal. Of course the multivariate normal. > The multivariate normal integral is much more difficult. To be concrete i have to calculate the dens