|
Dear all
I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
Look at the algorithms that are included in the software CD. You can also
download them from SPSS.com. Hector -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: 11 September 2008 14:37 To: [hidden email] Subject: Estimation Method for logistic regression in SPSS Dear all I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
In v15 and later, they are also part of the main help system. From the menus, Help > Topics; the Algorithms are at the bottom of the help table of contents.
Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hector Maletta Sent: Thursday, September 11, 2008 12:29 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Look at the algorithms that are included in the software CD. You can also download them from SPSS.com. Hector -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: 11 September 2008 14:37 To: [hidden email] Subject: Estimation Method for logistic regression in SPSS Dear all I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
Dear sir
I took a look at SPSS Algorithms but i did not find the answer. my question is "What is the Maximum likelihood approach is used by SPSS for logistic regression? is it the conditional ML, bais correction, or what? In v15 and later, they are also part of the main help system. From the menus, Help > Topics; the Algorithms are at the bottom of the help table of contents. Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hector Maletta Sent: Thursday, September 11, 2008 12:29 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Look at the algorithms that are included in the software CD. You can also download them from SPSS.com. Hector -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: 11 September 2008 14:37 To: [hidden email] Subject: Estimation Method for logistic regression in SPSS Dear all I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ This message has been scanned by AUN Spam E-mail Filter and Virus detection software. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
I'm looking at the "Model" and "Maximum Likelihood Estimates (MLE)" sections in the Logistic Regression Algorithms, which explain that the estimated regression coefficients maximize the joint likelihood, and are obtained using a Newton-Raphson algorithm. Is that what you're looking for, or do I misunderstand?
Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: Thursday, September 11, 2008 5:24 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Dear sir I took a look at SPSS Algorithms but i did not find the answer. my question is "What is the Maximum likelihood approach is used by SPSS for logistic regression? is it the conditional ML, bais correction, or what? In v15 and later, they are also part of the main help system. From the menus, Help > Topics; the Algorithms are at the bottom of the help table of contents. Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hector Maletta Sent: Thursday, September 11, 2008 12:29 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Look at the algorithms that are included in the software CD. You can also download them from SPSS.com. Hector -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: 11 September 2008 14:37 To: [hidden email] Subject: Estimation Method for logistic regression in SPSS Dear all I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ This message has been scanned by AUN Spam E-mail Filter and Virus detection software. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
And by using the GENLIN procedure you have the option to use
Newton-Raphson, Fisher scoring, or a hybrid method. I don't know if this will be of any help. Best, Henrik Reutter, Alex wrote: > I'm looking at the "Model" and "Maximum Likelihood Estimates (MLE)" sections in the Logistic Regression Algorithms, which explain that the estimated regression coefficients maximize the joint likelihood, and are obtained using a Newton-Raphson algorithm. Is that what you're looking for, or do I misunderstand? > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla > Sent: Thursday, September 11, 2008 5:24 PM > To: [hidden email] > Subject: Re: Estimation Method for logistic regression in SPSS > > Dear sir > > I took a look at SPSS Algorithms but i did not find the answer. my > question is "What is the Maximum likelihood approach is used by SPSS > for logistic regression? is it the conditional ML, bais correction, or > what? > > > In v15 and later, they are also part of the main > help system. > From the > menus, Help > Topics; the Algorithms > are at the bottom of the help table > of contents. > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion > [mailto:[hidden email]] On Behalf Of > Hector Maletta > Sent: Thursday, September 11, 2008 12:29 PM > To: > [hidden email] > Subject: Re: Estimation Method for logistic > regression in SPSS > > Look at the algorithms that are included in > the software CD. You can also > download them from SPSS.com. > Hector > > -----Original Message----- > From: SPSSX(r) > Discussion [mailto:[hidden email]] On Behalf Of > Hesham > Abdel-Meguid Abdalla > Sent: 11 September 2008 14:37 > To: > [hidden email] > Subject: Estimation Method for logistic > regression in SPSS > > Dear all > I have an urgent question. I > need to know the coefficients > estimation method for logistic > regression used in SPSS 14 and later. the > method used in these > versions solved the problem of spase data , but i did > not discover > which method used. Can any one help me please mention a > refrence. > > > > -- > Hesham Abdel-Meguid > Statistics > Dept. > Faculty of Commerce > Assiut University > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > _ _ _ _ _ _ _ _ _ > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > This > message has been scanned by AUN Spam E-mail Filter and Virus > detection software. > > > > > -- > Hesham > Abdel-Meguid > Statistics Dept. > Faculty of Commerce > Assiut > University > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
In reply to this post by Reutter, Alex
And if you use the GENLIN procedure you have the option to use
Newton-Raphson, Fisher scoring, or a hybrid method. I don't know if this is of any help. Best, Henrik Quoting "Reutter, Alex" <[hidden email]>: > I'm looking at the "Model" and "Maximum Likelihood Estimates (MLE)" > sections in the Logistic Regression Algorithms, which explain that > the estimated regression coefficients maximize the joint likelihood, > and are obtained using a Newton-Raphson algorithm. Is that what > you're looking for, or do I misunderstand? > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf > Of Hesham Abdel-Meguid Abdalla > Sent: Thursday, September 11, 2008 5:24 PM > To: [hidden email] > Subject: Re: Estimation Method for logistic regression in SPSS > > Dear sir > > I took a look at SPSS Algorithms but i did not find the answer. my > question is "What is the Maximum likelihood approach is used by SPSS > for logistic regression? is it the conditional ML, bais correction, or > what? > > > In v15 and later, they are also part of the main > help system. > From the > menus, Help > Topics; the Algorithms > are at the bottom of the help table > of contents. > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion > [mailto:[hidden email]] On Behalf Of > Hector Maletta > Sent: Thursday, September 11, 2008 12:29 PM > To: > [hidden email] > Subject: Re: Estimation Method for logistic > regression in SPSS > > Look at the algorithms that are included in > the software CD. You can also > download them from SPSS.com. > Hector > > -----Original Message----- > From: SPSSX(r) > Discussion [mailto:[hidden email]] On Behalf Of > Hesham > Abdel-Meguid Abdalla > Sent: 11 September 2008 14:37 > To: > [hidden email] > Subject: Estimation Method for logistic > regression in SPSS > > Dear all > I have an urgent question. I > need to know the coefficients > estimation method for logistic > regression used in SPSS 14 and later. the > method used in these > versions solved the problem of spase data , but i did > not discover > which method used. Can any one help me please mention a > refrence. > > > > -- > Hesham Abdel-Meguid > Statistics > Dept. > Faculty of Commerce > Assiut University > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > _ _ _ _ _ _ _ _ _ > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > This > message has been scanned by AUN Spam E-mail Filter and Virus > detection software. > > > > > -- > Hesham > Abdel-Meguid > Statistics Dept. > Faculty of Commerce > Assiut > University > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > ************************************************************ Henrik Lolle Department of Economics, Politics and Public Administration Aalborg University Fibigerstraede 1 9200 Aalborg Phone: (+45) 99 40 81 84 ************************************************************ ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
I appreciate your kind help. but i am sorry that i did not explian
well my question. MLE was developed to solve the problems of small sample and sparse data. there is Exact appproach, Conditional ML , and penalized ML. i need to know which method is used by SPSS to compare its results with another one. And if you use the GENLIN procedure you have the option to use Newton-Raphson, Fisher scoring, or a hybrid method. I don't know if this is of any help. Best, Henrik Quoting "Reutter, Alex" <[hidden email]>: > I'm looking at the "Model" and "Maximum Likelihood Estimates (MLE)" > sections in the Logistic Regression Algorithms, which explain that > the estimated regression coefficients maximize the joint likelihood, > and are obtained using a Newton-Raphson algorithm. Is that what > you're looking for, or do I misunderstand? > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf > Of Hesham Abdel-Meguid Abdalla > Sent: Thursday, September 11, 2008 5:24 PM > To: [hidden email] > Subject: Re: Estimation Method for logistic regression in SPSS > > Dear sir > > I took a look at SPSS Algorithms but i did not find the answer. my > question is "What is the Maximum likelihood approach is used by SPSS > for logistic regression? is it the conditional ML, bais correction, or > what? > > > In v15 and later, they are also part of the main > help system. > From the > menus, Help > Topics; the Algorithms > are at the bottom of the help table > of contents. > > Alex > > > -----Original Message----- > From: SPSSX(r) Discussion > [mailto:[hidden email]] On Behalf Of > Hector Maletta > Sent: Thursday, September 11, 2008 12:29 PM > To: > [hidden email] > Subject: Re: Estimation Method for logistic > regression in SPSS > > Look at the algorithms that are included in > the software CD. You can also > download them from SPSS.com. > Hector > > -----Original Message----- > From: SPSSX(r) > Discussion [mailto:[hidden email]] On Behalf Of > Hesham > Abdel-Meguid Abdalla > Sent: 11 September 2008 14:37 > To: > [hidden email] > Subject: Estimation Method for logistic > regression in SPSS > > Dear all > I have an urgent question. I > need to know the coefficients > estimation method for logistic > regression used in SPSS 14 and later. the > method used in these > versions solved the problem of spase data , but i did > not discover > which method used. Can any one help me please mention a > refrence. > > > > -- > Hesham Abdel-Meguid > Statistics > Dept. > Faculty of Commerce > Assiut University > > ===================== > To manage your subscription to SPSSX-L, send > a message > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send > a message to > [hidden email] (not to SPSSX-L), with no > body text except the > command. To leave the list, send the command > > SIGNOFF SPSSX-L > For a list of commands to manage > subscriptions, send the command > INFO REFCARD > _ _ _ _ _ _ _ _ _ > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > This > message has been scanned by AUN Spam E-mail Filter and Virus > detection software. > > > > > -- > Hesham > Abdel-Meguid > Statistics Dept. > Faculty of Commerce > Assiut > University > > ===================== > To manage your > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > > ===================== > To manage your subscription to SPSSX-L, send a message to > [hidden email] (not to SPSSX-L), with no body text except the > command. To leave the list, send the command > SIGNOFF SPSSX-L > For a list of commands to manage subscriptions, send the command > INFO REFCARD > ************************************************************ Henrik Lolle Department of Economics, Politics and Public Administration Aalborg University Fibigerstraede 1 9200 Aalborg Phone: (+45) 99 40 81 84 ************************************************************ ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ This message has been scanned by AUN Spam E-mail Filter and Virus detection software. -- Hesham Abdel-Meguid Statistics Dept. Faculty of Commerce Assiut University ====================To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
If you want an "exact" method, it is available from Cytel as LogXact. It is also available in SAS. There are many different penalized methods---some are available in R. Check out Frank Harrell's book, "Regression Modeling Strategies," for details. Stata also features some penalized methods.
Scott R Millis, PhD, MEd, ABPP (CN,CL,RP), CStat Professor & Director of Research Dept of Physical Medicine & Rehabilitation Wayne State University School of Medicine 261 Mack Blvd Detroit, MI 48201 Email: [hidden email] Tel: 313-993-8085 Fax: 313-966-7682 --- On Fri, 9/12/08, Hesham Abdel-Meguid Abdalla <[hidden email]> wrote: > From: Hesham Abdel-Meguid Abdalla <[hidden email]> > Subject: Re: Estimation Method for logistic regression in SPSS > To: [hidden email] > Date: Friday, September 12, 2008, 7:18 PM > I appreciate your kind help. but i am sorry that i did not > explian > well my question. MLE was developed to solve the problems > of small sample > and sparse data. there is Exact appproach, Conditional ML , > and penalized > ML. i need to know which method is used by SPSS to compare > its > results with another one. > ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
|
In reply to this post by Hesham Abdel-Meguid Abdalla
It's just using plain old (unconditional) ML. In the case of sparse data, the algorithm may actually not converge due to quasi-complete separation of the data - check the warnings and the iteration history table.
Alex ________________________________ From: Hesham Abdel-Meguid Abdalla [mailto:[hidden email]] Sent: Friday, September 12, 2008 6:16 PM To: Reutter, Alex Subject: [BULK] Re: Estimation Method for logistic regression in SPSS Importance: Low Dear sir I appreciate your kind help. but i am sorry that i did not explian well my question. MLE was developed to solve the problems of small sample and sparse data. there is Exact appproach, Conditional ML , and penalized ML. i need to know which method is used by SPSS to compare its results with another one. I'm looking at the "Model" and "Maximum Likelihood Estimates (MLE)" sections in the Logistic Regression Algorithms, which explain that the estimated regression coefficients maximize the joint likelihood, and are obtained using a Newton-Raphson algorithm. Is that what you're looking for, or do I misunderstand? Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: Thursday, September 11, 2008 5:24 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Dear sir I took a look at SPSS Algorithms but i did not find the answer. my question is "What is the Maximum likelihood approach is used by SPSS for logistic regression? is it the conditional ML, bais correction, or what? In v15 and later, they are also part of the main help system. >From the menus, Help > Topics; the Algorithms are at the bottom of the help table of contents. Alex -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hector Maletta Sent: Thursday, September 11, 2008 12:29 PM To: [hidden email] Subject: Re: Estimation Method for logistic regression in SPSS Look at the algorithms that are included in the software CD. You can also download them from SPSS.com. Hector -----Original Message----- From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Hesham Abdel-Meguid Abdalla Sent: 11 September 2008 14:37 To: [hidden email] Subject: Estimation Method for logistic regression in SPSS Dear all I have an urgent question. I need to know the coefficients estimation method for logistic regression used in SPSS 14 and later. the method used in these versions solved the problem of spase data , but i did not discover which method used. Can any one help me please mention a refrence. ====================To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
| Free forum by Nabble | Edit this page |
