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

Accepted Answer

per isakson
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
Explorer
Explorer on 27 Apr 2015
You did not get my question. Anyway, I find the way to read downloaded database here
Susan
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!

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More Answers (3)

Martin Paralic
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');

Vinícius
Vinícius on 30 Jul 2013
Hi, the error that has been:
\n$> WORKING ON 100.hea ... ??? Error using ==> fgetl at 44 Invalid file identifier. Use fopen to generate a valid file identifier.
Error in ==> rddata at 38 z= fgetl(fid1);
  1 Comment
Matt Kindig
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.

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laidi kamel
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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