VPLX: Variance Estimation for Complex Samples


VPLX documentation is available in the Portable Document Format (PDF). [PDF] or PDF denotes a file in Adobe’s Portable Document Format. To view the file, you will need the Adobe® Reader® Off Site available free from Adobe.

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.

The following chapters reflect the new syntax:

  • Cover page - includes a partial table of contents, Preface [PDF 28K]

  • Chapter 1 - Introduction [PDF 49K]

  • Chapter 2 - Recoding Variables in CREATE [PDF 51K]

  • Chapter 3 - Categorizing and Cross-Classifying Data in CREATE [PDF 39K]

  • Chapter 4 - Reading Data in CREATE [PDF 70K]

  • Chapter 6 - Comments and Metastatements [PDF 36K]

The following chapters from the old documentation cover material not yet available in the revision:

  • Old Chapter 2 - How VPLX Works [PDF 152K]

    This chapter is an introduction to replication methods and attempts to provide a basic notion of their implementation in VPLX.

  • Old Chapter 4 - The Display Step [PDF 80K]

  • Old Chapter 14 - Basic Features of the TRANSFORM Step [PDF 90K]

In addition, the following two .zip files contain related resources:

  • Examples - Examples and small data sets from the new documentation [Compressed File 43K]

  • SIPP extract - Data for SIPP examples [Compressed File 1,153K; 7,360K when uncompressed]

These files are compressed. They must be uncompressed before use. For information on uncompressing these files see our Compressed Files page.

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Source: U.S. Census Bureau  |  Systems Support Division  |  Page Last Modified: May 06, 2011