Re: odds vs probabilities

2002-02-25 Thread David Smith
Odds are multiplicative in the following sense, useful in some types of betting arrangements. If the odds of one bet are 4 to 3 and of the next bet 3 to 2 then the odds of both bets are the product 4*3 to 3*2 or 2 to 1. This is useful in some horse racing bets where the second (and even more)

Expected value problem...

2002-02-25 Thread josegomez
Hi, I am trying to work out the expected value of a RV z. After some manipulation, I end up with the following integral to solve: \int{zsin{P(z)]^{2}cos(P(z))^{2}}dz (I think I got that right: integral z*sin2(P(z))*cos2(P(z))dz, where sin2 and cos2 mean square of sin and cos,

Cauchy PDF + Parameter Estimate

2002-02-25 Thread Chia C Chong
Hi! Does anyone come across some Matlab code to estimate the parameters for the Cauchy PDF?? Or some other sources about the method to estimate their parameters?? Thanks.. CCC = Instructions for joining and leaving this

Demand forecast

2002-02-25 Thread simone giacopelli
Can anyone recommend a good text on demand forecasting? in particular I would like to have information about forecats models for newspapers sales. thanks, simone

Re: Question on Conditional PDF

2002-02-25 Thread Glen Barnett
Chia C Chong [EMAIL PROTECTED] wrote in message a5d38d$63e$[EMAIL PROTECTED]">news:a5d38d$63e$[EMAIL PROTECTED]... Glen [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Do you want to make any assumptions about the form of the conditional, or the joint, or

Re: regression of non-normal data ?

2002-02-25 Thread Paige Miller
John Ziker wrote: This research deals with the classical anthropological question of food sharing among hunters and gatherers. There are a number of hypotheses being discussed within the field. This study is relevant for two models, namely kinship cooperation and reciprocity. The kinship

Re: REQ: Appendix A. of Radford Neal thesis: Bayesian Learning for

2002-02-25 Thread Jonathan G Campbell
Mark wrote: Hi, I'm CS student interested in Radford Neal thesis called Bayesian Learning for Neural Networks. I know that some years ago this thesis was available for download from author's site, but nowadays there isn't possible. I have searched it on Intenet so I have not known to

Re: Question on Conditional PDF

2002-02-25 Thread Chia C Chong
Glen Barnett [EMAIL PROTECTED] wrote in message a5dev7$8jn$[EMAIL PROTECTED]">news:a5dev7$8jn$[EMAIL PROTECTED]... Chia C Chong [EMAIL PROTECTED] wrote in message a5d38d$63e$[EMAIL PROTECTED]">news:a5d38d$63e$[EMAIL PROTECTED]... Glen [EMAIL PROTECTED] wrote in message [EMAIL

What is an outlier ?

2002-02-25 Thread Voltolini
Hi, My doubt isan outlier can be a LOW data value in the sample (and not just the highest) ? Several text boks dont make this clear !!! Thanks V. = Instructions for joining and leaving this list, remarks about the

Re: Cauchy PDF + Parameter Estimate

2002-02-25 Thread Duncan Murdoch
On 25 Feb 2002 07:56:56 -0800, [EMAIL PROTECTED] (kjetil halvorsen) wrote: It isstraightforward tlo write down the loglikelihood, and then whatever optimization routine (there must be one in Matlab) will help you! Just be careful when searching, because Cauchy likelihoods are frequently

Reviewers Needed for Progress in Transplantation

2002-02-25 Thread EAKIN MARK E
The editor of Progress in Transplantation is needing biostatisticians for reviewers. If you are interested, see below. Mark Eakin Associate Professor Information Systems and Management Sciences Department University of Texas at Arlington [EMAIL PROTECTED] or [EMAIL PROTECTED]

Statistical Resources Site

2002-02-25 Thread J. Williams
The University of Michigan Documents Center has a Web site with links to statistical resources that might prove invaluable to those interested in a wide variety of data sources. Check it out. http://www.lib.umich.edu/govdocs/stats.html

Re: What is an outlier ? cont'd

2002-02-25 Thread Art Kendall
--A59A95727DA65C2AB2F9EBF5 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit That being said, occasions can arise where there are outliers other than from measurement or data entry error. Different disciplines have different approaches. What discipline are

What is an outlier ?

2002-02-25 Thread Art Kendall
--6F47CB3D3B10A10A3E9B064C Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit An outlier is any value for a variable that is suspect given the measurement system, common sense, other values for the variable in the data set, or the values a case has on other

Re: What is an outlier ?

2002-02-25 Thread Dennis Roberts
of course, if one has control over the data, checking the coding and making sure it is correct is a good thing to do if you do not have control over that, then there may be very little you can do with it and in fact, you may be totally UNaware of an outlier problem i see as a potentially MUCH

STATA Constrained Regression

2002-02-25 Thread Emmanuel Salta
Does anybody know how to run this constrained regression in STATA? The model is Y=b1X1 + b2X2 + b3X3, where b1+b2+b3=1 and 0bi1 for each i. Thanks. Emmanuel Salta [EMAIL PROTECTED] = Instructions for joining and leaving this

Re: detecting outliers in NON normal data ?

2002-02-25 Thread Glen Barnett
Voltolini wrote: Hi, I would like to know if methods for detecting outliers using interquartil ranges are indicated for data with NON normal distribution. The software Statistica presents this method: data point value UBV + o.c.*(UBV - LBV) data point value LBV - o.c.*(UBV - LBV)

Re: Cauchy PDF + Parameter Estimate

2002-02-25 Thread Glen Barnett
Herman Rubin wrote: In article a5daqb$72k$[EMAIL PROTECTED], Chia C Chong [EMAIL PROTECTED] wrote: Hi! Does anyone come across some Matlab code to estimate the parameters for the Cauchy PDF?? Or some other sources about the method to estimate their parameters?? What is so difficult

Re: What is an outlier ?

2002-02-25 Thread Glen Barnett
Voltolini wrote: Hi, My doubt isan outlier can be a LOW data value in the sample (and not just the highest) ? Several text boks dont make this clear !!! What makes an outlier an outlier is your model. If your model accounts for all the observations, you can't really call any of

Re: Means of semantic differential scales

2002-02-25 Thread Jay Warner
Jay Tanzman wrote: I just got chewed out by my boss for modelling the means of some 7-point semantic differential scales. The scales were part of a written, self-administered questionnaire, and were laid out like this: Not stressful 1__ 2__ 3__ 4__ 5__ 6__ 7__ Very stressful So, why or

WSCH : A Revolutionary Acne Treatment and More HZ

2002-02-25 Thread wsch9884
Title: SPECIAL ALERT Special Alert : WASATCH PHARMACEUTICALS (OTCBB: WSCH)TOP4 REASONS TO BUY WSCH1.The products and medical therapies developed by WSCH represent possibly the most important breakthrough in the field of Dermatology in the last fifty years.2.WSCH anticipates FDA approval on seven