Returns the prefilter of signal edfsignal ("HP:0.1Hz", "LP:75Hz N:50Hz", etc.)
prefilter=edf_get_prefilter(path, edfsignal) prefilter=edf_get_prefilter(edf_header, edfsignal)
string containing the path and name of the file
plist with header information from edfopen_file_readonly
Minimum value is 1.
prefilter of signal edfsignal
Returns the prefilter of signal edfsignal ("HP:0.1Hz", "LP:75Hz N:50Hz", etc.).