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Table of Contents
Preface
Records
Signals, Samples, and Time
Annotations
Applications
About this Guide
Recent changes
Changes in version 10.3.6
Changes in version 10.3.5
Changes in version 10.3.2
Changes in version 10.3.0
Changes in version 10.2.9
Changes in version 10.2.7
Changes in version 10.2.6
Changes in version 10.2.5
Changes in version 10.2.4
Changes in version 10.2.3
Changes in version 10.2.1
Changes in version 10.2.0
Changes in version 10.1.6
Changes in version 10.1.5
Changes in version 10.1.4
Changes in version 10.1.3
Changes in version 10.1.2
Changes in version 10.1.1
Changes in version 10.1.0
Changes in version 10.0.1
Changes in version 10.0.0
1. Using the WFDB Library
1.1 A Trivial Example Program in C
1.2 Compiling a Program with the WFDB Library
1.3 Using the WFDB library with other languages
1.4 The Database Path and Other Environment Variables
1.5 Running the Example Program
1.6 A Note on Identifiers
1.7 More About the WFDB Path
1.8 Exercises
2. WFDB Library Functions
About these functions
2.1 Selecting Database Records
annopen
isigopen
osigopen
osigfopen
wfdbinit
2.2 Special Input Modes
setifreq
getifreq
setgvmode
getspf
2.3 Reading and Writing Signals and Annotations
getvec
getframe
putvec
getann
ungetann
putann
2.4 Non-Sequential Access to WFDB Files
isigsettime
isgsettime
iannsettime
sample and sample_valid
2.5 Conversion Functions
annstr, anndesc, and ecgstr
strann and strecg
setannstr, setanndesc, and setecgstr
[ms]timstr
strtim
datstr
strdat
aduphys
physadu
adumuv
muvadu
2.6 Calibration Functions
calopen
getcal
putcal
newcal
flushcal
2.7 Miscellaneous WFDB Functions
newheader
setheader
setmsheader
wfdbquit
iannclose
oannclose
wfdbquiet
wfdbverbose
wfdberror
sampfreq
setsampfreq
setbasetime
getcfreq
setcfreq
getbasecount
setbasecount
setwfdb
getwfdb
wfdbfile
wfdbflush
getinfo
putinfo
setibsize
setobsize
wfdbgetskew
wfdbsetskew
wfdbgetstart
wfdbsetstart
3. Data Types
3.1 Signal Information Structures
3.2 Calibration Information Structures
3.3 Annotator Information Structures
3.4 Annotation Structures
4. Annotation Codes
4.1 Macros for Mapping Annotation Codes
5. Database Files
5.1 File Types
Header Files
Signal Files
Annotation Files
Calibration Files
AHA Format Files
5.2 Using Standard I/O for Database Files
5.3 Multiplexed Signal Files
5.4 Multi-Frequency Records
5.5 Multi-Segment Records
5.6 Simultaneous Access to Multiple Records
5.7 Signals That Are Not Stored in Disk Files
5.8 Piped and Local Records
5.9 NETFILES
5.10 Annotation Order
6. Programming Examples
Example 1: An Annotation Filter
Example 2: An Annotation Translator
Example 3: An Annotation Printer
Example 4: Generating an R-R Interval Histogram
Example 5: Reading Signal Specifications
Example 6: A Differentiator
Example 7: A General-Purpose FIR Filter
Example 8: Creating a New Database Record
Example 9: A Signal Averager
Example 10: A QRS Detector
Exercises
A. Glossary
B. Installing the WFDB Software Package
How to obtain the WFDB Software Package
Unix, GNU/Linux, and similar operating systems
Mac OS/X (Darwin)
MS-Windows
Other systems
C. WFDB Application Programs
How to use these programs
Annotation File Processing
Evaluation of ECG Analyzers
Signal Processing Applications
Graphical Applications
D. Extensions
E. Sources
Answers to Selected Exercises
Concept Index
Function and Macro Index
George B. Moody (
george@mit.edu
)