doc: Make the developers guide just a description of file formats.

[pspp] / doc / dev / data.texi

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-@c PSPP - a program for statistical analysis.
-@c Copyright (C) 2019 Free Software Foundation, Inc.
-@c Permission is granted to copy, distribute and/or modify this document
-@c under the terms of the GNU Free Documentation License, Version 1.3
-@c or any later version published by the Free Software Foundation;
-@c with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-@c A copy of the license is included in the section entitled "GNU
-@c Free Documentation License".
-@c
-
-@node Processing Data
-@chapter Processing Data
-
-Developer's Guide
-
-Proposed outline:
-
-@example
-* Introduction
-* Basic concepts
-** Data sets
-** Variables
-** Dictionaries
-** Coding conventions
-** Pools
-* Syntax parsing
-* Data processing
-** Reading data
-*** Casereaders generalities
-*** Casereaders from data files
-*** Casereaders from the active dataset
-*** Other casereaders
-** Writing data
-*** Casewriters generally
-*** Casewriters to data files
-*** Modifying the active dataset
-**** Modifying cases obtained from active dataset casereaders has no real effect
-**** Transformations; procedures that transform
-** Transforming data
-*** Sorting and merging
-*** Filtering
-*** Grouping
-**** Ordering and interaction of filtering and grouping
-*** Multiple passes over data
-*** Counting cases and case weights
-** Best practices
-*** Multiple passes with filters versus single pass with loops
-*** Sequential versus random access
-*** Managing memory
-*** Passing cases around
-*** Renaming casereaders
-*** Avoiding excessive buffering
-*** Propagating errors
-*** Avoid static/global data
-*** Don't worry about null filters, groups, etc.
-*** Be aware of reference counting semantics for cases
-@end example