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2. WFDB Library Functions

This chapter describes the functions that are available to programs compiled with the WFDB library. The functions are introduced in several groups, with examples to illustrate their usage.

About these functions  General notes on functions. This node discusses arguments, return codes, and the organization of this section of the guide.

The remainder of the nodes in this section describe functions for:

2.1 Selecting Database Records  Selecting database records (opening files).
2.2 Special Input Modes  Setting the input sampling frequency and more.
2.3 Reading and Writing Signals and Annotations  Reading and writing signals and annotations.
2.4 Non-Sequential Access to WFDB Files  Non-sequential access to WFDB files.
2.5 Conversion Functions  Time and other conversion functions.
2.6 Calibration Functions  Calibrating signals.
2.7 Miscellaneous WFDB Functions  Attribute-reading and other functions.



George B. Moody (george@mit.edu)