Plot graph from edf file

Hi,
I am able to read edf file but how to plot the graph from it? Thanks.
This is from edf read.
ver: 20160817
patientID: '1 '
recordID: '1 '
startdate: '08.07.18'
starttime: '10.24.32'
bytes: 10496
records: 281856
duration: 2260
ns: 40
label: {1x40 cell}
transducer: {1x40 cell}
units: {1x40 cell}
physicalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
physicalMax: [1x40 double]
digitalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
digitalMax: [1x40 double]
prefilter: {1x40 cell}
samples: [1x40 double]

7 comentarios

madhan ravi
madhan ravi el 28 de Oct. de 2018
Editada: madhan ravi el 28 de Oct. de 2018
Which variables do you want to plot? Provide the data’s and show us your code to read the file.
Reff
Reff el 28 de Oct. de 2018
This is the code to read and plot the graph. Thanks
[hdr,record] = edfread('EXP1.edf');
record=record';
lgh=length(record);
AF3_before=record(1:lgh,3);
AF4_before=record(1:lgh,16);
figure(1)
subplot(2,1,1)
plot(AF3_before);
title('Original Signal in AF3');
xlabel('Time(ms)');
ylabel('Amplitude(µv)')
figure(2)
subplot(2,1,1)
plot(AF4_before);
title('Original Signal in AF4');
xlabel('Time(ms)');
ylabel('Amplitude(µv)');
Step 1 of 2: Reading requested records. (This may take a few minutes.)... Maximum variable size allowed by the program is exceeded.
madhan ravi
madhan ravi el 28 de Oct. de 2018
File?
Reff
Reff el 28 de Oct. de 2018
Try this one. Since the file is big, please extract to RAR and then to edf.
madhan ravi
madhan ravi el 28 de Oct. de 2018
Try this one
which one??
Reff
Reff el 28 de Oct. de 2018
here
Walter Roberson
Walter Roberson el 28 de Oct. de 2018
When you get a maximum variable size error in this context, the edf file you are trying to read is not a valid edf file up through the supported edf format version. It might be a corrupted file.
That said, I have not attempted to examine the file posted as I am not at my computer now.

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