HI
I'm a new EZI user and I just downloaded it to my computer at home which runs XP. It seemed to download successfully, and I was able to open the program, select import (to import data). However, I'm not able to get past specifying the names of the variables to be imported as when I hit "enter" the system shuts itself off and all the windowns close.
It's probably something simple like I hit the wrong button, but has anyone else ever had this problem?
Thanks
Melissa Levitt
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I'm providing below a link to the .ppt file that I presented
several years ago (probably 1999) at a GIS in Health conference
held in Bethesda, MD.
http://www.brc.tamus.edu/blackland/staff/muttiah/ihgc_files/frame.htm
I welcome comments. I can email a write up if you would
like more details.
*****************************************
* Ranjan S. Muttiah
* Associate Professor
* Texas Agricultural Experiment Station
* Blackland Res. & Ext. Ctr.
* 808 East Blackland Road
* Temple, Texas 76502
* Tel: 254-774-6103
* Fax: 254-770-6561
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Imagine I am sitting down to have EI estimate turnout for whites and
blacks in two states. My hypothesis is that black candidates increase
white and black turnout in the Congressional districts in which they run.
I have precinct-level turnout for each precinct in the states, as well as
precinct-level racial composition. I have a choice as to two ways to
estimate the turnout rates. I can estimate
them Congressional district by Congressional district, or I can estimate
all of the turnout rates for whites and blacks for the entire state at one
time.
If I estimate these rates all at once for the state, then I am borrowing
the most strength from all of the turnout in all of the state. The
downside, however, might be that if I estimate turnout for each district
separately then I am allowing those districts to have turnout rates that
are more different from each other than would be the case if I estimated
the white and black turnout rates for each state at the same time. In
other words, we might expect EI to produce different answers depending on
how we run the models in the way I have described.
My question is, which way is preferable? And my second question, how
different would we expect the turnout rates to be depending upon how I run
EI?
Thanks,
Greg
Gregory A. Pettis
Political Science
Elon University
CB # 2203
Elon, N.C. 27244
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For my dissertation I've estimated nine seperate EI model specifications
for 9 seperate U.S. states, with most of the models employing a variety of
covariates.
All of the models' ML functions converged normally, except for two of the
states. In the first state 3 of the 9 converged, and in the second 5 of
the nine. One of my advisors has instructed me to explain why in these
two states the models failed to converge. The failure to converge does
not seem to be dependent on the numbers of covariates. Obviously the
models without covariates converged, as did the models with the most
numbers of covariates. In one of the states none of the models with the
covariates which were dichotomized converged, and in the other state
convergence was not dependent on how the covariates were coded.
Also, since there was no convergence, I don't have any output to evaluate.
What do you suggest?
Greg
Gregory A. Pettis
Political Science
Elon University
CB # 2203
Elon, N.C. 27244
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I'm emailing the first actual EI question to the list in months, instead
of ads for hair growth, etc.
My question concerns the exchange in Political Analysis in 2003. The
final article, co-authored by everyone, does not address the
cross-contamination issue.
Gary, what's your position on this? In my analysis I'm studying black and
white turnout, and in my second stage regressions, using Lewis' (2000)
FGLS, white and black turnout almost always go up or down together. What
do you think the likelihood is that cross-contamination could be occuring?
Are there any diagnostics? H&S2 make it sound like it's pretty much a
given to occur, although it seems most of the EI work I've seen published
doesn't support this view (such as Gay 2001, where white and black turnout
tended to move independently and not together).
Thanks!
Greg
Gregory A. Pettis
Political Science
Elon University
CB # 2203
Elon, N.C. 27244
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At 08:52 AM 9/25/2003 -0400, Gary King wrote:
>You should never pay much attention to the alpha in the extended model,
>unless you believe the model holds exactly. The best use of the extended
>model, as the basic model, is to go all the way to the precinct-level
>estimates...
I understand the argument for burdening the estimation stage with lots of
hypothesized covariates (although I don't like it!). I also understand the
problem with using the alphas as statistical summaries. They just move
around the bivariate normal from which the precinct estimates are drawn;
they do not reflect the actual relationship between covariates and
estimated behavior that emerges after the bounds constrain precinct
estimation. But I'm not clear on what you are prescribing when you say
people should go to the precinct estimates if they want to report the
relationship between various explanatory variables and the (estimated)
group behavior. I thought that's what I was doing with the second-stage
regression. Can you provide any guidance?
>(Was it Huey Long who accused a campaign opponent of being a "known
>matriculator"?)
Apparently it was George Smathers, a senator from Florida. He is quoted as
having said the following about Claude Pepper (see
http://www.lincolninstitute.org/archives/kennedy/0303.html)
- was a shameless extrovert
- practiced celibacy before his marriage
- had a sister who was a thespian in wicked New York
- matriculated before entering college
- was a well-known heterosexual in college
steve voss
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D. Stephen Voss, Asst. Prof URL- http://www.uky.edu/~dsvoss
1603 Patterson Office Tower Phone- (859)257-4313
Dept. of Political Science "It was my duty to bring
University of Kentucky the facts to light, and there
Lexington, KY 40506-0027 I must leave it." Sherlock Holmes
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