1. Import Notes data
1.1 data path and shall not include non-alphabetic, non-numeric, non-underscore character.
1.2 folder, file, variable names in the workspace may not begin with a number .
1.3 Do not use matlab or eeglab in the name of the function as a variable or folder name.
Identification:
which -all [variablename]
2. downsampling (if necessary)
2.1 If your sampling frequency higher than 250hz , it can be down sampled to 250hz.
Before downsampling 2.2 to anti-aliasing first for low-pass filtering , eeglab automatic low-pass filtering.
Down 2.3 Benefits sampling:
2.3.1 The amount of compression of data .
2.3.2 remove the high frequency data for ICA for better decomposition .