[FieldTrip] HELP: import simple data from txt file - non supported format, no header

[Hoang Truong]

Dear community,

This is Tony, from CS Department, University of Colorado Boulder. I am new
to eeg analysis and fieldtrip. Currently I work on recording eeg and emg
data using our own hardware with 2 eeg and 2 emg channels respectively.
Since we use our custom hardware, the data are saved in a simple format of
txt file with 7 columns (example data on Dropbox: link
<https://www.dropbox.com/s/30yzafa7ukg8xhl/Pressure_3_6.txt?dl=0>): 3 first
columns are data from environment sensors, the next 4 are eeg and emg data
(250Hz sampling rate, 42s recording)
I would like to ask what will be a proper way for me to import this data
into fieldtrip. I checked the faq about importing custom data but I do not
understand how to make custom readheader, readdata and readevent function.
Any help would be appreciated (suggestions, code examples, etc).
Thank you so much.

Sincerely,
Tony
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