Convert 2D EEG dataset to 4D

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Bayar Shahab
Bayar Shahab 2021-2-7
编辑： Bayar Shahab 2021-2-7
I have this EEG data file/dataset named "SSVEPdata.mat " which is a 4D matrix. on the other side, I have this 2D EEG data file/dataset named "S001a.mat".
I want to convert or prepre the second 2D file to a format which is compitable to the first one 4D.
The SSVEPdata contains below info
1) The first dimension is an epoch relative to a single sensor (always 1000 samples, that is 4 seconds, the SR is 250)
2) The second is the sensor.
3) The 3rd element is the trial relative to a class, so that max value is 20
4) the 4th element is the correct label
The S001a is a 2D matrix with 257*117917 which are 257 channels/sensors and the other are readings/recordings per sensor data
Link for both data files: data files URL

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