Program Specifications
LIMDEP AND NLOGIT are written for use on Windows driven microcomputers. LIMDEP and NLOGIT are compatible with Windows 95 and later Windows operating systems. The programs require 16 megabytes of memory and occupy approximately 10 megabytes on the local hard disk drive.
Program Limits at a Glance
We are often asked about LIMDEP and NLOGIT’s specific internal limits. The following limits are relevant to the most common applications.
Active Data Set |
|
|---|---|
Variables |
900 |
Observations |
3,000,000+ |
Total cells in data area |
limited by memory |
Namelists |
25 |
Variables in namelist |
100 |
Command Entry |
|
|---|---|
Characters in one command |
2,500 |
Characters in a stored procedure |
2,500 |
Commands in a stored procedure |
50 |
Stored procedures |
10 |
Model Size, General & Specific |
|
|---|---|
Number of parameters |
150 |
Equations for SURE & 3SLS |
30 |
Equations for WALD, NLSURE, GMM |
20 |
Panel Data Models |
|
|---|---|
Groups in fixed & random effects |
Linear models: unlimited |
Regressors in fixed & random effects |
150 |
Groups x Regressors |
unlimited |
Intervals in TVCs for survival |
50 |
Periods in fixed effects (Chamberlain) logit |
100 |
Groups in time series/cross section |
100 |
NLOGIT |
|
|---|---|
Number of alternatives |
100 |
Branches in tree |
25 |
Limbs in tree |
10 |
Trunks in tree |
5 |
Number of attributes & constants |
125 |
Matrix & Scalar Algebra |
|
|---|---|
Number of active matrices |
100 |
Number of active named scalars |
50 |
Size of a matrix |
50,000 cells |
Rows in data matrix |
unlimited |