getChanListData DataEntity:
BoaDataEntity.py
DES: get data for list of channels INP: (string) type = type of data (int list) chan = channel list (int) phase = -1:all data; 0:phase difference; 1:phase 1; 2:phase 2 (int) flag = data flag to be used OUT: (float) array = data of the input list of channels