Wolfram.com
WolframAlpha.com
WolframCloud.com

Wolfram Language Example Repository

Ready-to-use examples of Wolfram Language

Primary Navigation

- Alphabetical List

Submit a New Example

Related Pages

WarpingDistance
WarpingCorrespondence
TimeSeries
ListLinePlot
CanonicalWarpingDistance
CanonicalWarpingCorrespondence

Signal Processing

Compare Two ECG Signals Using DTW

Use the dynamic time warping distance to compare two heartbeat signals

Open in Cloud
Download Notebook

Start with two ECG signals:

In[1]:=

ecg1=TimeSeries

Time: 0 to 10
Data points: 1001

["Values"];ecg2=TimeSeries

Time: 0 to 10
Data points: 1001

["Values"];

Plot the two signals together:

In[2]:=

ListLinePlot{ecg1,ecg2},



Out[2]=

Compute the dynamic time warping (DTW) distance between the two signals:

In[3]:=

WarpingDistance[ecg1,ecg2]

Out[3]=

44.7149

Find the time warping correspondence between two signals:

In[4]:=

{n1,n2}=WarpingCorrespondence[ecg1,ecg2];

Plot the correspondence between the two indices:

In[5]:=

ListLinePlot{n1,n2},

...



Out[5]=

Warp the two signals based on the time warping correspondence:

In[6]:=

w1=ecg1〚n1〛;w2=ecg2〚n2〛;

Plot the warped versions of the ECG signals:

In[7]:=

ListLinePlot{w1,w2},



Out[7]=

Check the correspondence between the warped signals:

In[8]:=

ListLinePlotTranspose@WarpingCorrespondence[w1,w2],

...



Out[8]=

See Also

Compare and Predict Stock Prices

Related Symbols

WarpingDistance
WarpingCorrespondence
TimeSeries
ListLinePlot
CanonicalWarpingDistance
CanonicalWarpingCorrespondence

Publisher Information

Contributed by: Wolfram Staff

© 2025 Wolfram. All rights reserved.

Legal & Privacy Policy
Contact Us
WolframAlpha.com
WolframCloud.com