U.S. Bureau of Census

VPLX: Documentation



VPLX documentation is available in the Portable Document Format (PDF). In order to view these files, you will need the Adobe(R) Acrobat(R) Reader, which is available for free from the Adobe web site.

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 in PDF reflect the new syntax:

* Cover page includes a partial table of contents, Preface (28K)

* Chapter 1 Introduction (49K)

* Chapter 2 Recoding Variables in CREATE (51K)

* Chapter 3 Categorizing and Cross-Classifying Data in CREATE (39K)

* Chapter 4 Reading Data in CREATE (70K)

* Chapter 6 Comments and Metastatements (36K)

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

* Old Chapter 2 How VPLX Works (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 (80K)

* Old Chapter 14 Basic Features of the TRANSFORM Step (90K) The new TRANSFORM step is currently in testing.

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

* Examples Examples and small data sets from the new documentation (43K)

* SIPP extract (1,153K) Data for SIPP examples (7,360K when unzipped)

The .zip files were compressed using Info-ZIP's program zip. Info-ZIP's software (Zip, UnZip and related utilities) is free and can be obtained as source code or executables from various bulletin board services and anonymous-ftp sites, including ftp.uu.net:/pub/archiving/zip/*, which was the source used by the author. Other unzip programs will presumably also successfully unzip the files.


Last Revised: Tuesday, Aug-17-1999 12:40 EST



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