Program Specifications

Operating Systems


LIMDEP 11 and NLOGIT 6 are compatible with Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP. The programs are compatible with 32 and 64 bit systems, but are not 64 bit applications.

Hardware Requirements


DVD-ROM drive
Minimum of 512 MB of RAM
Minimum of 100 MB of disk space

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

10,000

Characters in a stored procedure

10,000

Commands in a stored procedure

100

Stored procedures

10


Model Size, General & Specific  

Number of parameters

150

Equations for SURE & 3SLS

30

Equations for WALD, NLSURE, GMM

50


Panel Data Models  

Groups in fixed & random effects

Linear models: unlimited
Nonlinear models:100,000

Regressors in fixed & random effects

150

Periods in linear fixed effects

1,000

Groups x Regressors

unlimited

Periods in fixed effects (Chamberlain) logit

100


NLOGIT  

Number of alternatives

500

Branches in tree

25

Limbs in tree

10

Trunks in tree

5

Number of attributes & constants

300


Matrix & Scalar Algebra  

Number of active matrices

100

Number of active named scalars

100

Size of a matrix

50,000 cells