Dear Prof. King,
I am conducting an analysis on the risk of aircraft crashes, comparing data
from accidents and normal flights. Given the rare occurence of accidents, I
have an extremely unblanced data set.
A discussion on ALLSTAT
(http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind04&L=allstat&D=0&I=-1&P=15
7323) on this topic mentions your paper (Logistic Regression in Rare Events
Data, 2001) as well as other methods to deal with rare events in logistic
regression. One of them is to conduct logistic regression on subsets.
Each subset has a 50:50 ratio of events to non-events, achieved by selecting
all events and a random selection of the same number of non-events. The
final parameter values would be defined by averaging the subsets' results.
This method, apparently, is base on findings of Weiss & Provost (The Effect
of Class Distribution on Classifier Learning: An Empirical Study, 2001),
which deals with machine learning and data-mining methods.
Given my lack of training in this field, I am unsure whether it is
appropriate to treat logistic regression as a classifier/learner in the
data-mining sense, such that Weiss & Provosts' conclusions also apply to the
statistical technique. Your opinion on this matter would be greatly
appreciated.
Also, would it be possible to implement the corrections suggested in your
Logistic Regression in Rare Events Data paper with SPSS/Excel?
Thank you for your kind attention; I look forward to hearing from you soon.
Yours sincerely,
Derek Wong
Research Assistant
Transport Studies Group
Civil & Building Engineering Dept.
Loughborugh University
Leics. LE11 3TU
UK
Tel.: +44 (0)1509 263171 ext. 4681
Fax: +44 (0)1509 223981
Project website: http://civil-unrest.lboro.ac.uk/cvaja/index.htm
-
relogit mailing list served by Harvard-MIT Data Center
List Address: relogit(a)latte.harvard.edu
Subscribe/Unsubscribe: http://lists.hmdc.harvard.edu/?info=relogit
Dear All,
I understand Relogit is not a likelihood technique, so can�t perform the likelihood ratio test (LRT) like form the ordinary logit. But, are there any other ways of doing smething similar to that from Relogit; I simplely want to perform the goodness-of-fit test between two nested models.
Thanks all.
J.S.
---------------------------------
Do you Yahoo!?
Yahoo! Mail - Helps protect you from nasty viruses.
Adobe Creative Suite Premium at 60% OFF,
Macromedia Studio MX 2004 Pro at 75% OFF,
Microsoft Office 2003 Pro at 60% OFF,
Adobe InDesign CS 3.0 at 72% OFF,
Microsoft Office Mac 2004 at 70% OFF,
Corel WordPerfect Office 12 at 67% OFF,
**** EXCLUSIVELY available to Qualified Faculty, Staff, and Students of Higher Education and K-12 institutions.(see below for details) ****
COMPUTER PRODUCTS FOR EDUCATION is pleased to offer to qualified students, faculty, and staff, the best prices and service on all ACADEMIC EDITION SOFTWARE from MICROSOFT, MACROMEDIA, ADOBE, MACROMEDIA, SYMANTEC, COREL, AUTODESK, ENDNOTE, FILEMAKER, and MANY OTHER MAJOR SOFTWARE MANUFACTURERS - AT DISCOUNTS UP TO 91% OFF COMMERCIAL RETAIL PRICES!!!
To order, please visit our website at:
www.software-for-education.com
or call 800-679-7007.
FREE SHIPPING COUPON CODE*: TLK245 (Expires: 10-31-2004)
****** PRICES VALID THROUGH OCTOBER 31, 2004 ********
---------------------- Education Standard You
ADOBE (for Windows & Mac) Price Retail Save!
---------------------- --------- ------ -----
Creative Suite Premium 1.1 $394.95 $999 60%
(Includes: InDesign,Photoshp,Illustr,Golive,AcrobatProf)
Acrobat 6.0 Standard* $65.95* $299 78%*
Acrobat 6.0 Professional* $109.95* $449 76%*
After Effects 6.5 Standard $289.95 $699 59%
After Effects 6.5 Professional $389.95 $999 61%
Audition 1.0 $146.95 $299 51%
Creative Suite Premium 1.1 $394.95 $999 60%
Dimensions 3.0 $89.95 $129 30%
Encore 1.5 DVD $239.95 $549 56%
Illustrator CS 11.0 $94.95 $399 77%
InDesign CS 3.0 $189.95 $699 73%
InDesign CS PageMaker Edition $199.95 $349 43%
PageMaker 7.0.2 $289.95 $499 42%
Photoshop CS 8.0 $279.95 $649 55%
Photoshop Elements 2.0 $46.95 $99 53%
Photoshop Elements+Album 2 Win $72.95 $149 51%
Premiere Pro 1.5 WinXP $239.95 $699 66%
Video Collection Pro 2.5 $689.95 $1499 53%
Video Collection Standard 2.5 $479.95 $999 54%
*After $30 Mail-in Rebate from Adobe - for FACULTY ONLY.
Visit: www.software-for-education.com
--------------------------- Education Standard You
MICROSOFT: Price Retail Save!
--------------------------- --------- ------ -----
Office 2003 Professional $189.95 $499 60%
Office 2003 Std Students&Teachers $147.95 $399 63%
Office Mac 2004 Students&Teachers $149.95 $499 70%
FrontPage 2003 $98.95 $199 50%
OneNote 2003 $48.95 $199 75%
Publisher 2003 $97.95 $169 42%
Project 2003 Professional $189.95 $999 80%
Project 2003 Standard $69.95 $599 88%
Visio 2003 Professional $148.95 $499 70%
Visio 2003 Standard $64.95 $199 66%
Visual Studio.Net Pro 2003 $94.95 $1079 91%
Windows XP Professional Upg $94.95 $199 52%
*Office 2003 Professional includes: Word, Excel, PowerPoint, Outlook, Access, and Publisher.
**Office 2003 for Students & Teachers includes: Word, Excel, Powerpoint, and Outlook.
Visit: www.software-for-education.com
---------------------- Education Standard You
MACROMEDIA (for Windows & Mac) Price Retail Save!
---------------------- --------- ------ -----
Studio MX 2004 Pro $248.95 $999 75%
Studio MX 2004 Standard $198.95 $799 75%
Dreamweaver MX 2004 $ 99.95 $299 67%
Fireworks MX 2004 $ 99.95 $199 50%
Flash MX 2004 $ 99.95 $499 80%
Flash MX Pro 2004 $149.95 $699 79%
FreeHand MX $ 99.95 $399 75%
Director MX 2004 $489.95 $1999 59%
RoboDemo 5 $199.95 $499 60%
Contribute 3 $ 89.95 $149 40%
Visit: www.software-for-education.com
--------------------------- Education Standard You
SYMANTEC: Price Retail Save!
--------------------------- --------- ------ -----
Norton Antivirus 2005 $36.95 $49 26%
Norton Antivirus 9.0 Mac $57.95 $69 17%
Norton Ghost 2003 $59.95 $69 14%
Norton Internet Security 2004 $59.95 $69 14%
Norton Systemworks 2004 $59.95 $69 14%
Norton SystemWorks 3.0 Mac $107.95 $129 17%
Norton Utilities 8.0 Mac $79.95 $99 20%
--------------------------- Education Standard You
COREL: Price Retail Save!
--------------------------- --------- ------ -----
Corel WordPerfect Office 12 $98.95 $299 67%
Corel Draw 12.0 $99.95 $399 72%
Corel Painter 8.0 $97.95 $299 67%
Visit: www.software-for-education.com
--------------------------- Education Standard You
AutoDesk: Price Retail Save!
--------------------------- --------- ------ -----
AutoCAD 2005 Full Ver 2D+3D* $379.95 $3470 89%
AutoCAD 2005 LT $147.95 $725 80%
AutoCAD Architectural Dsktp 2005* $379.95 $4195 91%
AutoCAD Land Desktop 2005* $459.95 $4695 90%
Map 3D 2005* $479.95 $4295 89%
VIZ 2005* $299.95 $1895 85%
*Price for Students, Faculty, & Staff for personal use -
pricing for schools for institutional use is different.
Please call 800-679-7007 for more information.
Visit: www.software-for-education.com
--------------------------- Education Standard You
EndNote: Price Retail Save!
--------------------------- --------- ------ -----
EndNote 8.0-Students $109.95 $299 63%
EndNote 8.0-Teacher/Schools $198.95 $299 33%
Final Draft 7.0 $139.95 $199 30%
Final Draft AV2 $139.95 $179 28%
ProCite 5.0-Students $109.95 $299 63%
ProCite 5.0-Teacher/Schools $199.95 $299 33%
Reference Manager 11-Students $99.95 $299 67%
Reference Manager 11-Teacher/Schl $184.95 $299 38%
Visit: www.software-for-education.com
--------------------------- Education Standard You
QUIKEN(INTUIT): Price Retail Save!
--------------------------- --------- ------ -----
Quickbooks Pro 2004 $102.95 $399 58%
--------------------------- Education Standard You
FILEMAKER: Price Retail Save!
--------------------------- --------- ------ -----
FileMaker Pro 7 $149.95 $299 50%
--------------------------- Education Standard You
BORLAND: Price Retail Save!
--------------------------- --------- ------ -----
Borland C# Builder Architect $439.95 $1799 76%
Borland C# Builder Pro $117.95 $999 88%
Borland C++ BuilderX Developer $239.95 $1000 76%
Borland Delphi 7 Studio Architect $489.95 $3000 84%
Borland JBuilderX Developer $119.95 $500 76%
Borland Kylix 3.0 Enterprise $449.95 $1999 77%
--------------------------- Education Standard You
AVID (Hi-tech Video): Price Retail Save!
--------------------------- --------- ------ -----
Avid Xpress Pro 4.3 $299.95 $1695 82%
For more information, visit our website at:
www.software-for-education.com
or call 800-679-7007.
PURCHASE ORDERS may be FAXED to: 800-679-6996 (727-530-7994).
Academic Edition software is exactly the same as the Full-Retail versions** except that it has been deeply discounted for Qualified Education Buyers.
For hundreds of other software products available from CPE at similar discounts, call us at 800-679-7007.
All software sold by CPE is authentic original software from the manufacturer. THESE ARE NOT PIRATED COPIES. ALL SOFTWARE COMES IN ORIGINAL MANUFACTURER'S BOXES AND INCLUDES A VALID VERIFIABLE LICENSE.
----------
LICENSING:
----------
For school purchases of five to ten (5-10) or more units, depending on the product, please call 800-679-7007 for even deeper discounts on license packs.
---------------------------
QUALIFIED EDUCATION BUYERS:
---------------------------
The following are defined as Qualified Education Buyers. QEBs must provide the below verification upon making any purchase.
1. Students of Higher Education - All enrolled college, junior college, community college, technical school, vocational school, and university students.
2. K-12 Students - K-12 students are eligible for most, but not all, academic-edition software products.
3. Teachers - All K-12 school and Higher Education institution teachers.
4. Faculty - All K-12 school and Higher Education institution faculty.
5. Staff - All K-12 school and Higher Education institution staff.
6. Schools - All elementary, middle and high schools (K-12 schools); vocational and technical schools; correspondence schools, including Internet correspondence schools, and all colleges, including junior and community colleges, and universities.
7. Home Schools - Home schools are now eligible to purchase most Academic Edition software. Home schools must be approved on a case by case basis. Please call for more details.
-------------------------
VERIFICATION:
-------------------------
Purchasers must provide fax-verification of status as being a current faculty, staff, or student. After placing your order, you simply fax to CPE either:
(a) a copy of a current picture School I.D. Card; or,
(b) a current paycheck stub with an alternative picture I.D. (drivers license, etc.) Sensitive information may be blacked out; or
(c) Schools may purchase by faxing a valid school purchase order.
For more details, call us or visit our website.
No verification is required for purchases of Microsoft Office 2003 Standard or Office Mac 2004 for Students and Teachers.
-------------------------
CPE is an Authorized Education Reseller for Microsoft, Adobe, Macromedia, AutoDesk, Corel, Symantec and many other major software manufacturers. CPE is a national software distributor committed to providing the lowest prices possible to the Education community with the best customer service!!
Prices generally remain unchanged until the end of the month. However, all prices and availability are subject to change without notice, due to factors outside our control.
*Free Shipping via UPS Ground Only available with coupon code through 10-31-2004. Enter the coupon code in the promotion code field for web orders, or provide to our operator by phone to receive Free Shipping, or write code on school purchase orders.
**Some Academic Edition boxes may not include supplemental materials, such as extra fonts, image libraries, or third-party(OEM) products, which are included in the Full-Retail versions. However, the core-programs themselves are exactly the same.
__________________________
If you would like to receive monthly updates of special offers, and pricing updates, please subscribe to our monthly mailer by clicking on the following link:
http://www.software-for-education.com/subscrb.pl?email=relogit@latte.harvar…
__________________________
U-N-S-U-S-C-R-I-B-E LINK:
We hope you have found this message valuable. However, if you do not wish to recieve any more offer from CPE, please click on the following link:
http://www.software-for-education.com/rem.pl?email=relogit@latte.harvard.ed…
Or call 800-679-7007 and ask to be deleted from our list.
__________________________
Computer Products for Education
5325 140th Avenue North
Clearwater, Florida 33760
Tel: 800-679-7007 / 727-530-1709
Fax: 800-679-6996 / 727-530-7994
___________________
THANK YOU KINDLY!
21512648237227
Dear Professor King,
I found the programme relogit for rare events logit regression on your
homepage. I applied your model to estimate foreign market exit in a
sample of German and UK high-technology firms.
In this context, I have the following question:
When displaying the results, it is common practice to display the value
of the log-likelihood function. However, the relogit programme doesn't
save a value of the log-likelihood function. Is it correct to use the
log-likelihood function from the ordinary logit, although the latter
regression is biased? Or do I have to adjust the value of the
log-likelihood, for example by putting the relogit estimator of beta in
the formula of the log-likelihood?
Answering this question probably also determines, in which way I have
to calculate the Pseudo R2 to be displayed in my paper.
Thank you for your efforts (and happy Easter!).
Helmut Fryges
***************************************************************
Helmut Fryges
Centre for European Economic Research (ZEW)
Department of Industrial Economics and
International Management
L 7,1 ; 68161 Mannheim
P.O. Box 10 34 43 ; 68034 Mannheim
Germany
Phone: +49(0)621/1235-189
Fax: +49(0)621/1235-170
E-mail: fryges(a)zew.de
-
relogit mailing list served by Harvard-MIT Data Center
List Address: relogit(a)latte.harvard.edu
Subscribe/Unsubscribe: http://lists.hmdc.harvard.edu/?info=relogit
Micrssoft Windows XP Pro Upg at 51% OFF,
Adobe Creative Suite Premium at 62% OFF,
Adobe Illustrator CS 11.0 at 76% OFF,
Microsoft Office Mac v.X at 70% OFF,
EndNote 7.0 at 67% OFF,
plus FREE SHIPPING WITH BELOW COUPON CODE
**** EXCLUSIVELY available to Qualified Faculty, Staff, & Student of Higher Education and K-12 educational institutions. (see below for details) ****
COMPUTER PRODUCTS FOR EDUCATION, Inc. is pleased to offer to qualified faculty, staff, and students, the best service and prices on all ACADEMIC EDITION SOFTWARE from MICROSOFT, ADOBE, SYMANTEC, COREL, AUTODESK, ENDNOTE, FILEMAKER, and several OTHER MAJOR SOFTWARE MANUFACTURERS - AT DISCOUNTS UP TO 91% OFF STANDARD RETAIL PRICES!
FREE SHIPPING COUPON CODE*: MGX421 (EXPIRES 12-31-03)
For more information, visit our website at:
www.academic-edition-software.com
or call 800-679-7007.
---------------------- Education Standard You
ADOBE Price Retail Save!
---------------------- --------- ------ -----
New Releases:
Creative Suite Premium*** $384.95 $999 62%
GoLive CS 7.0 $76.95 $399 81%
Illustrator CS 11.00 $94.95 $399 76%
InDesign CS 3.0 $189.95 $699 73%
Photoshop CS 8.0 $269.95 $649 58%
*** Creative Suite Premium includes: GoLive CS, Illustrator CS, InDesign CS, Photopshop CS, Acrobat 6 Pro, & Version Cue.
Acrobat 6.0 Standard $89.95 $299 70%
Acrobat 6.0 Professional $138.95 $449 78%
After Effects 6.0 Standard $289.95 $699 59%
After Effects 6.0 Professional $389.95 $999 62%
Audition 1.0 $146.95 $299 51%
Encore DVD $239.95 $549 56%
PageMaker 7.0 $279.95 $499 46%
Photoshop Elements 2.0 $46.95 $99 53%
Premiere Pro 7.0 $229.95 $699 65%
Streamline 4.0 $69.95 $123 43%
Video Collection Standard $419.95 $999 58%
(Premiere Pro/After Effects Std/Encore DVD/Audition)
--------------------------- Education Standard You
MICROSOFT: Price Retail Save!
--------------------------- --------- ------ -----
New Releases:
FrontPage 2003 $96.95 $199 51%
Office 2003 Professional* $196.50 $499 60%
Office 2003 Students&Teachers** $146.95 $339 63%
Publisher 2003 $96.95 $169 43%
Project 2003 Professional $187.95 $999 81%
Project 2003 Standard $68.95 $599 88%
Visio 2003 Professional $157.95 $499 68%
Visio 2003 Standard $67.95 $199 66%
Office Mac v.X Students&Teachers $148.95 $499 70%
Visual Studio.Net Pro 2003 $97.95 $1079 91%
Windows XP Professional Upg $96.75 $199 52%
Windows 2000 Professional Upg $126.95 $319 60%
*Office 2003 Professional includes: Word, Excel, PowerPoint, Outlook, Access, and Publisher.
**Office 2003 for Students & Teachers includes: Word, Excel, Powerpoing, and Outlook.
--------------------------- Education Standard You
SYMANTEC: Price Retail Save!
--------------------------- --------- ------ -----
Norton Antivirus 2004 $35.95 $49 27%
Norton Antivirus 9.0 Mac $57.95 $69 17%
Norton Ghost 2003 $54.95 $69 21%
Norton Systemworks 2003 $59.95 $69 14%
Norton Systemworks 2003 Pro $79.95 $99 20%
Norton Systemworks+Firewall $89.95 $119 25%
Norton SystemWorks 3.0 Mac $107.95 $129 17%
Norton Utilities 8.0 Mac $79.95 $99 20%
pcAnywhere 11 Host & Remote $159.95 $189 16%
--------------------------- Education Standard You
COREL: Price Retail Save!
--------------------------- --------- ------ -----
Corel WordPerfect Office 11 $98.95 $299 67%
Corel Draw 11.0 $139.95 $549 72%
Corel Painter 8.0 $97.95 $299 67%
--------------------------- Education Standard You
AutoDesk: Price Retail Save!
--------------------------- --------- ------ -----
AutoCAD 2004 LT - Students $146.95 $725 80%
AutoCAD 2004 LT Teacher/School $398.95 $725 45%
AutoCAD 2004 LT Upgrade $139.95 $249 44%
AutoCAD 2004 Full Students $376.95 $3395 89%
--------------------------- Education Standard You
EndNote: Price Retail Save!
--------------------------- --------- ------ -----
EndNote 7.0-Students $98.85 $299 67%
EndNote 7.0-Teacher/Schools $184.65 $299 38%
Final Draft 6.0 $137.95 $199 30%
Final Draft AV $127.95 $179 28%
ProCite 5.0-Students $109.95 $299 63%
ProCite 5.0-Teacher/Schools $199.95 $299 33%
Reference Manager 10-Students $99.95 $299 67%
Reference Manager 10-Teacher/Schl $184.95 $299 38%
--------------------------- Education Standard You
SONY(SONIC FOUNDRY): Price Retail Save!
--------------------------- --------- ------ -----
Acid Pro 4.0 $159.95 $399 60%
Screenblast Movie Studio 3.0 $52.95 $99 47%
Sound Forge 7.0 w/CD Architect $159.95 $449 64%
Vegas 4.0 $159.95 $559 71%
Vegas 4.0+DVD $274.95 $799 66%
--------------------------- --------- ------ -----
For more information, visit our website at:
www.academic-edition-software.com
or call 800-679-7007.
PURCHASE ORDERS may be FAXED to: 800-679-6996
Academic Edition software is exactly the same as the Full-Retail versions** except that it has been deeply discounted for Qualified Education Buyers.
For hundreds of other software products available from CPE at similar discounts, call us at 800-679-7007.
All software sold by CPE is authentic original software from the manufacturer. THESE ARE NOT PIRATED COPIES. ALL SOFTWARE COMES IN ORIGINAL MANUFACTURER'S BOXES AND INCLUDES A VALID VERIFIABLE LICENSE.
----------
LICENSING:
----------
For school purchases of five to ten (5-10) or more units, depending on the product, please call 800-679-7007 for even deeper discounts on license packs.
---------------------------
QUALIFIED EDUCATION BUYERS:
---------------------------
The following are defined as Qualified Education Buyers. QEBs must provide the below verification upon making any purchase.
1. Students of Higher Education - All enrolled college, junior college, community college, technical school, vocational school, and university students.
2. K-12 Students - K-12 students are eligible for most, but not all, academic-edition software products.
3. Teachers - All K-12 school and Higher Education institution teachers.
4. Faculty - All K-12 school and Higher Education institution faculty.
5. Staff - All K-12 school and Higher Education institution staff.
6. Schools - All elementary, middle and high schools (K-12 schools); vocational and technical schools; correspondence schools, including Internet correspondence schools, and all colleges, including junior and community colleges, and universities.
7. Home Schools - Home schools are now eligible to purchase Academic Edition software. Home schools must be approved on a case by case basis.
-------------------------
VERIFICATION:
-------------------------
Purchasers must provide fax-verification of status as being a current faculty, staff, or student. After placing your order, you simply fax to CPE either:
(a) a copy of a current picture School I.D. Card; or,
(b) a current paycheck stub with an alternative picture I.D. (drivers license, etc.) Sensitive information may be blacked out; or
(c) Schools may purchase by faxing a valid school purchase order.
For more details, call us or visit our website.
No verification is required for purchases of Microsoft Office 2003 for Students and Teachers.
-------------------------
CPE is an Authorized Education Reseller for Microsoft, Adobe, Corel, Symantec and many other major software manufacturers. CPE is a national software distributor committed to providing the lowest prices possible to the Education community with the best customer service!!
Prices generally remain unchanged until the end of the month. However, all prices and availability are subject to change without notice, due to factors outside our control.
*Free Shipping via UPS Ground Only available with coupon code through end of the month. Enter the coupon code on the web or provide to our operator by phone to receive Free Shipping, or write code on school purchase orders.
**Some Academic Edition boxes may not include supplemental materials, such as extra fonts, image libraries, or third-party(OEM) products, which are included in the Full-Retail versions. However, the core-programs themselves are exactly the same.
___________________
UNSUBSCRIBE LINK:
We hope you have found this message valuable. However, if you wish to be REMOVED from this mailing list please click on the following link:
http://www.crazyhorse03.org.uk/academic/remove.pl?email=relogit@latte.harva…
Or call 800-679-7007 and ask to be removed from our mailing list.
___________________
Thank you, kindly!!
Computer Products for Education
5325 140th Avenue North
Clearwater, Florida 33760
Tel: 800-679-7007
___________________
12/10/2003 5:48:22 PM
FFXQDYLLBQWVWDHEGSA 177071444725783
-
relogit mailing list served by Harvard-MIT Data Center
List Address: relogit(a)latte.harvard.edu
Subscribe/Unsubscribe: http://lists.hmdc.harvard.edu/?info=relogit