Re: Data Mining blooper and Related Subjects

2000-04-25 Thread David A. Heiser
- Original Message - From: T.S. Lim To: <[EMAIL PROTECTED]> Sent: Tuesday, April 25, 2000 10:49 AM Subject: Data Mining blooper > While hunting for URLs for KDCentral.com, I encountered several > misleading statements about Statistics made by Data Mining people. > I've posted 3 of them

Re: Part versus partial correlation

2000-04-25 Thread dennis roberts
some books call the SEMI partial r ... the part correlation (or vice versa) ... i avoid it because ... part and partial sound too much alike when would you use the semi partial? 1. i use it sometimes to provide an alternative way to obtain the multiple R ... say predictors are x1 and x2 ... and

Part versus partial correlation

2000-04-25 Thread Simon, Steve, PhD
I'm helping out someone taking a Statistics class and her instructor is drawing a distinction between "part correlation" and "partial correlation". I had never heard of the term "part correlation" before. As best I understand it, If you have three variables, A, B, C, then you can compute residual

Re: problem files?

2000-04-25 Thread Jerry Dallal
dennis roberts wrote: > > i don't often suggest products ... since that would be a commercial, right? > (believe me, i had to pay for this) but ... here is something i have used > ... if you have problems with certain files ... opening them and/or > converting from one format to another ... have

Data Mining blooper

2000-04-25 Thread T.S. Lim
While hunting for URLs for KDCentral.com, I encountered several misleading statements about Statistics made by Data Mining people. I've posted 3 of them to my bulletin board. If you encounter other wrong remarks, I invite you to post them to the board too at http://www.recursive-partitioning.c

problem files?

2000-04-25 Thread dennis roberts
i don't often suggest products ... since that would be a commercial, right? (believe me, i had to pay for this) but ... here is something i have used ... if you have problems with certain files ... opening them and/or converting from one format to another ... have a look at this ... you might

Re: Prediction of rare events

2000-04-25 Thread Russell Martin
[EMAIL PROTECTED] wrote: > > I am looking for any information concerning the prediction of _rare_ > events. > > I would very much appreciate any pointers to books, articles, > work-in-progress, on-line resources, etc etc. > > Many thanks, > al Do you really mean prediction of individual events

Re: Low Reliability.

2000-04-25 Thread Rich Ulrich
On 24 Apr 2000 07:41:10 -0700, [EMAIL PROTECTED] (Paul W. Jeffries) wrote: > Does any one know of good sources--either book chapters or articles--that > discuss how low reliability among items in an experiment influences > inferential statistics. That background, I think, should be in standard p

New Text Book

2000-04-25 Thread Oved6
Just wanted fellow statisticians to know that I just published a book in business statistics. It is entitled BUSINESS STATISTICS IN BRIEF,published by South-Western and can be examined at: www.swcollege.com under decision sciences. If you're looking for a good brief stat text with all the ancillar

Re: Sample Size Question

2000-04-25 Thread Oved6
Hi: In response to your question and without further information, it sounds as if you are sampling a proportion. Not knowing anything about that proportion, and assuming that you wish to do your sampling with 95% confidence, your sample size would depend upon the margin of error that is accepta

Fitting of distribution (Package SPSS 7.5)

2000-04-25 Thread Rajiv Pandey
Dear all Hi I am seeking your suggestion to fit statistical distributions (Normal, Beta,Weibull etc.) with SPSS Ver. 7.5 for the diameter of a tree stand in a forest. Thanks in advance. Rajiv Pandey === This list is ope