Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Topics
Data & Maps
Surveys & Programs
Resource Library
VPLX: Variance Estimation for Complex Samples
VPLX: Variance Estimation for Complex Samples
VPLX is a FORTRAN 77 program developed in the 1990’s for the calculation of variances for complex sample designs through replication. It is in the public domain and is provided here “as is” for historical purposes.
The software is available in the form of Fortran source code. A Fortran compiler (such as f77, f90, or gfortran) will be required to install VPLX.
VPLX evolved within an original syntactic design. To improve the usability of VPLX, a three-phase plan to improve the syntax began in 1997. Version 1998.09 reflects the results of the first phase of revision. It received considerable internal testing at the Census Bureau, and is the release presented here. While a beta version from the second phase of revision was produced and tested internally, it was never released, and development of VPLX ceased.
During the syntactic revision, the documentation is an mixture of new material written for the new syntax and earlier documentation for the old syntax. As the revision continues, new chapters will continue to replace the old.
Page Last Revised - September 13, 2022
✕
Is this page helpful?
Yes
No
Yes
No✕
NO THANKS
255 characters maximum
255 characters maximum reached
255 characters maximum reached
✕
Thank you for your feedback.
Comments or suggestions?
Comments or suggestions?
