https://github.com/b/libdtw

Fast dynamic time warping library based on the UCR Suite http://www.cs.ucr.edu/~eamonn/UCRsuite.html
https://github.com/b/libdtw

Last synced: 16 days ago
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Fast dynamic time warping library based on the UCR Suite http://www.cs.ucr.edu/~eamonn/UCRsuite.html

• Host: GitHub
• URL: https://github.com/b/libdtw
• Owner: b
• Created: 2012-11-17T21:50:26.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2012-11-20T23:50:26.000Z (almost 12 years ago)
• Last Synced: 2024-07-31T22:55:59.621Z (3 months ago)
• Language: C
• Homepage:
• Size: 3.87 MB
• Stars: 36
• Watchers: 6
• Forks: 16
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
### libdtw

libdtw is a fast, dynamic time warping library based on the [UCR Suite](http://www.cs.ucr.edu/~eamonn/UCRsuite.html).

### Building

	cd src && make

This will produce libdtw.a. You will need to link against this library.

### Usage

The only interface is the ucr_query() function. The function accepts 6 arguments:

	int ucr_query(double *q, int m, double r, double *buffer, int buflen, struct ucr_index *result);

_q_ is the pattern to be matched.

_m_ is the number of elements in q. 

_r_ is the size of the warping window.

_buffer_ is the data.

_buflen_ is the length of the data array.

_result_ is the output.

result->index is the index of the first element in the best matching sequence in the data. result->value is the

DTW distance between the query and the matching sequence in the data.

ucr_query() returns 0 on success and -1 on failure.