How to read file '100.dat' and '100.atr' of MIT BIH DATABASE (PHYSIONET)?
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Hi peoples,
I would like of know how do for read the files DATABASE (MIT BIH DATABASE). The own provides an script for read, but gives error. The script is: rddata.m site: http://www.physionet.org/physiotools/matlab/rddata.m. Could anyone help me?
Thanks
1 Comment
Reid Kostenuk
on 11 Nov 2016
I had the same problem. You have to precisely specify the file path. You can read about specifying file paths here... https://www.mathworks.com/help/matlab/matlab_env/specify-file-names.html
Accepted Answer
per isakson
on 30 Jul 2013
Edited: per isakson
on 30 Jul 2013
Your question ought to include
- a link to the data
- details on the error
However, I downloaded the data (100.dat,100.atr,100.hea) and changed the line
PATH= 'M:\Profile\Desktop2k\MIT_CD\mitdb';
to match my download-folder. The program then worked nicely and produced a diagram.
4 Comments
Susan
on 8 Aug 2022
Edited: Susan
on 8 Aug 2022
@per isakson Could you please tell me in what function you set the PATH to the folder that contains the data (100.dat,100.atr,100.hea) ? By changing the path, do you mean changing
WFDB_PATH = []
in "wfdbloadlib.m" line 50 to
WFDB_PATH='M:\Profile\Desktop2k\MIT_CD\mitdb'
in your case?
I downloaded the data I want to read and exceuted the rdann.m file, However, I got the following error
Index exceeds Java array dimensions
Error in rdann (line 188)
str=char(data(1));
Any help would be greatly appreciated. Thanks in advance!
More Answers (3)
Martin Paralic
on 25 Jan 2019
Edited: Martin Paralic
on 25 Jan 2019
% use WFDB Toolbox for MATLAB and Octave from
% https://www.physionet.org/physiotools/matlab/wfdb-app-matlab/
% First, ADD PATH in Matlab enviroment where your data are stored (100.dat, 100.hea, 100.atr)
% use function rdsamp() to read samples
% [signal,Fs,tm]=rdsamp(recordName,signaList,N,N0,rawUnits,highResolution)
[signal, fs, tm] = rdsamp('100');
% to read annotation use function rdann()
% [ann,anntype,subtype,chan,num,comments]=rdann(recordName, annotator, C, N, N0, AT)
[ann, anntype, subtype, chan, num, comments] = rdann('100','atr');
1 Comment
Walter Roberson
on 13 Jan 2023
That WFDB location appears to now redirect to
Vinícius
on 30 Jul 2013
1 Comment
Matt Kindig
on 31 Jul 2013
Based on the error message, it sounds like fopen() failed. Are you sure that you're passing in the correct filename to fopen().
Try this:
dbstop if error %turn on breakpoints at error
and now run your code. What is the value of the filename variable passed into the fopen() statement? Is this a valid file? Remember, if the file is not local to your working directory or is not on your path, you need to include the full (absolute) path for the file.
laidi kamel
on 10 May 2015
hi, i tried to read the files 100.data and 100.atr using the fucntion rddaat.m but it doesn't work . please if you can help me to read this file.
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