Writes an annotation/event to the file
edfwrite_annotations(edf_handle,edf_annotation)
integer containing the file handle of the opened edf/bdf-file.
the struct edf_annotation contains: edf_annotation.onset, edf_annotation.duration and edf_annotation.description. Each entry can be a vector! .
onset is relative to the starttime and startdate of the file in units of Seconds! resolution is 0.0001 second! .
duration are in units of Seconds! resolution is 0.0001 second! If duration is unknown or not applicable: set a negative number (-1)
UTF8-string containing the text that describes the event.
Writes annotations/events from a structure to the file. This function is optional and can be called only after opening a file in writemode and before closing the file