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Re: Means of semantic differential scales

of course, to be fair to the first jay .. could be simply that his boss did not like semantic diff. scales ... AND, for none of the reasons the second jay below said ... it would be helpful if the first jay could give us some further info on why his boss was so ticked off ... At 09:39 PM 2/25

Re: Means of semantic differential scales

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, wh

Re: What is an outlier ?

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 an

Re: Cauchy PDF + Parameter Estimate

Herman Rubin wrote: > > In article , > 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

Re: detecting outliers in NON normal data ?

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.*

detecting outliers in NON normal data ?

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) where: UBV is the 75th pe

Re: Means of semantic differential scales

On Mon, 25 Feb 2002 15:17:55 -0800, Jay Tanzman <[EMAIL PROTECTED]> 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

Means of semantic differential scales

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 why not is it kosher to mod

STATA Constrained Regression

Does anybody know how to run this constrained regression in STATA? The model is Y=b1X1 + b2X2 + b3X3, where b1+b2+b3=1 and 0http://jse.stat.ncsu.edu/ =

Re: What is an outlier ?

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

Re: Cauchy PDF + Parameter Estimate

In article , 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 about maximum likelihood?

What is an outlier ?

--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 ot

Re: What is an outlier ? cont'd

--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 yo

Statistical Resources Site

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 ?

Of course it can be. An outlier is any value that is not usual for your data set. "Voltolini" <[EMAIL PROTECTED]> wrote in message 002f01c1be21$65913d60$0fe9e3c8@oemcomputer">news:002f01c1be21$65913d60$0fe9e3c8@oemcomputer... > Hi, > > > My doubt isan outlier can be a LOW data value in the sam

Reviewers Needed for Progress in Transplantation

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] -O

Re: Cauchy PDF + Parameter Estimate

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 multi-

What is an outlier ?

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 pr

Re: Question on Conditional PDF

"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

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

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 kno

Re: Question on Conditional PDF

> > > Do you want to make any assumptions about the form of the conditional, > > > or the joint, or any of the marginals? > > > > Well, the X & Y are dependent and hence there are being descibed by a joint > > PDF. > > Can you at least indicate whether any of them are restricted to be positive?

Re: Cauchy PDF + Parameter Estimate

It isstraightforward tlo write down the loglikelihood, and then whatever optimization routine (there must be one in Matlab) will help you! Kjetil Halvorsen Chia C Chong wrote: > > Hi! > > Does anyone come across some Matlab code to estimate the parameters for the > Cauchy PDF?? Or some other s

Re: regression of non-normal data ?

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 > kinshi

Demand forecast

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

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 t

Cauchy PDF + Parameter Estimate

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 list,

Expected value problem...

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, respective

Re: odds vs probabilities

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) b

Re: Question on Conditional PDF

"Glen" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > [EMAIL PROTECTED] (Chia C Chong) wrote in message news:<[EMAIL PROTECTED]>... > > Helloo.. > > > > I have 1000 samples 3 RVs (say X, Y and Z) drawn from a series of > > experiments. My intention is to find