Re: [R] Error when running Conditional Logit Model

2009-12-19 Thread Hien Nguyen
On 12/18/09 22:24, Charles C. Berry wrote: On Fri, 18 Dec 2009, Hien Nguyen wrote: Thanks a lot for answering my questions. I have tried to run the clogit for only 64 observations and 4 independent variables and the results are solved instantly. However, when I run the same command (with

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread Hien Nguyen
Dear Drs Winsemius and Berry, Thanks a lot for your comment and suggestions on running my model. I am not just new to R but new to CLM as well. :( With your suggestions, I figure out that I have huge misunderstandings on the model and data arrangement. After my finals, I have read again

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread tlumley
On Fri, 18 Dec 2009, Hien Nguyen wrote: Dear Drs Winsemius and Berry, Thanks a lot for your comment and suggestions on running my model. I am not just new to R but new to CLM as well. :( With your suggestions, I figure out that I have huge misunderstandings on the model and data arrangement.

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread David Winsemius
On Dec 18, 2009, at 2:46 PM, Hien Nguyen wrote: Dear Drs Winsemius and Berry, Thanks a lot for your comment and suggestions on running my model. I am not just new to R but new to CLM as well. :( With your suggestions, I figure out that I have huge misunderstandings on the model and data

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread Hien Nguyen
Thanks a lot for answering my questions. I have tried to run the clogit for only 64 observations and 4 independent variables and the results are solved instantly. However, when I run the same command (with only 4 dependent variables) for the full data, it keeps running for 50 minutes now. :(

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread David Winsemius
On Dec 18, 2009, at 7:39 PM, Hien Nguyen wrote: Thanks a lot for answering my questions. I have tried to run the clogit for only 64 observations and 4 independent variables and the results are solved instantly. However, when I run the same command (with only 4 dependent variables) for

Re: [R] Error when running Conditional Logit Model

2009-12-18 Thread Charles C. Berry
On Fri, 18 Dec 2009, Hien Nguyen wrote: Thanks a lot for answering my questions. I have tried to run the clogit for only 64 observations and 4 independent variables and the results are solved instantly. However, when I run the same command (with only 4 dependent variables) for the full data,

[R] Error when running Conditional Logit Model

2009-12-04 Thread Hien Nguyen
Dear R-helpers, I am very new to R and trying to run the conditional logit model using clogit command. I have more than 4000 observations in my dataset and try to predict the dependent variable from 14 independent variables. My command is as follows clmtest1 -

Re: [R] Error when running Conditional Logit Model

2009-12-04 Thread David Winsemius
On Dec 4, 2009, at 9:22 AM, Hien Nguyen wrote: Dear R-helpers, I am very new to R and trying to run the conditional logit model using clogit command. I have more than 4000 observations in my dataset and try to predict the dependent variable from 14 independent variables. My command is as

Re: [R] Error when running Conditional Logit Model

2009-12-04 Thread Hien Nguyen
Dear Dr. Winsemius, Thank you very much for your reply. I have tried many possible combinations (even with the model of only 2 predictors) but it produces the same message. With more than 4000 observations, I think 14 predictors might not be too many. Although my dependent variable (Pin) is

Re: [R] Error when running Conditional Logit Model

2009-12-04 Thread David Winsemius
On Dec 4, 2009, at 5:49 PM, Hien Nguyen wrote: Dear Dr. Winsemius, Thank you very much for your reply. I have tried many possible combinations (even with the model of only 2 predictors) but it produces the same message. With more than 4000 observations, I think 14 predictors might not be

Re: [R] Error when running Conditional Logit Model

2009-12-04 Thread Charles C. Berry
On Fri, 4 Dec 2009, David Winsemius wrote: On Dec 4, 2009, at 5:49 PM, Hien Nguyen wrote: Dear Dr. Winsemius, Thank you very much for your reply. I have tried many possible combinations (even with the model of only 2 predictors) but it produces the same message. With more than 4000

[R] Error when running Conditional Logit Model

2009-12-01 Thread Hien Nguyen
Dear R-helpers, I am very new to R and trying to run the conditional logit model using clogit command. I have more than 4000 observations in my dataset and try to predict the dependent variable from 14 independent variables. My command is as follows clmtest1 -