i received csv from file generated by “musemonitor”. in csv file, the absolute values of beta are 0.64…, 1.2… etc. i want to know the meaning of the absolute vaules of beta.
You can read Interaxon’s documentation about Absolute band powers here.
For Beta absolute, the values you are looking at at the log of the Power Spectral Density in the 13Hz to 30Hz frequency band. These values typically are in the -1 to +1 range, but it’s not uncommon for values to fall outside of this range.