function?[hdr?record]?=?edfread（fname?varargin）
%?Read?European?Data?Format?file?into?MATLAB
%
%?[hdr?record]?=?edfread（fname）
%?????????Reads?data?from?ALL?RECORDS?of?file?fname?（‘*.edf‘）.?Header
%?????????information?is?returned?in?structure?hdr?and?the?signals
%?????????（waveforms）?are?returned?in?structure?record?with?waveforms
%?????????associated?with?the?records?returned?as?fields?titled?‘data‘?of
%?????????structure?record.
%
%?[...]?=?edfread（fname?‘assignToVariables‘?assignToVariables）
%?????????Triggers?writing?of?individual?output?variables?as?defined?by
%?????????field?‘labels‘?into?the?caller?workspace.
%
%?[...]?=?edfread（...‘desiredSignals‘desiredSignals）
%?????????Allows?user?to?specify?the?names?（or?position?numbers）?of?the
%?????????subset?of?signals?to?be?read.?|desiredSignals|?may?be?either?a
%?????????string?a?cell?array?of?comma-separated?strings?or?a?vector?of
%?????????numbers.?（Default?behavior?is?to?read?all?signals.）
%?????????E.g.:
%?????????data?=?edfread（mydata.edf‘desiredSignals‘‘Thoracic‘）;
%?????????data?=?edfread（mydata.edf‘desiredSignals‘{‘Thoracic1‘‘Abdominal‘}）;
%?????????or
%?????????data?=?edfread（mydata.edf‘desiredSignals‘[246:13]）;
%
%?FORMAT?SPEC:?Source:?http://www.edfplus.info/specs/edf.html?SEE?ALSO:
%?http://www.dpmi.tu-graz.ac.at/~schloegl/matlab/eeg/edf_spec.htm
%
%?The?first?256?bytes?of?the?header?record?specify?the?version?number?of
%?this?format?local?patient?and?recording?identification?time?information
%?about?the?recording?the?number?of?data?records?and?finally?the?number?of
%?signals?（ns）?in?each?data?record.?Then?for?each?signal?another?256?bytes
%?follow?in?the?header?record?each?specifying?the?type?of?signal?（e.g.
%?EEG?body?temperature?etc.）?amplitude?calibration?and?the?number?of
%?samples?in?each?data?record?（from?which?the?sampling?frequency?can?be
%?derived?since?the?duration?of?a?data?record?is?also?known）.?In?this?way
%?the?format?allows?for?different?gains?and?sampling?frequencies?for?each
%?signal.?The?header?record?contains?256?+?（ns?*?256）?bytes.
%
%?Following?the?header?record?each?of?the?subsequent?data?records?contains
%?‘duration‘?seconds?of?‘ns‘?signals?with?each?signal?being?represented?by
%?the?specified?（in?the?header）?number?of?samples.?In?order?to?reduce?data
%?size?and?adapt?to?commonly?used?software?for?acquisition?processing?and
%?graphical?display?of?polygraphic?signals?each?sample?value?is
%?represented?as?a?2-byte?integer?in?2‘s?complement?format.?Figure?1?shows
%?the?detailed?format?of?each?data?record.
%
%?DATA?SOURCE:?Signals?of?various?types?（including?the?sample?signal?used
%?below）?are?available?from?PHYSIONET:?http://www.physionet.org/
%
%
%?%?EXAMPLE?1:
%?%?Read?all?waveforms/data?associated?with?file?‘ecgca998.edf‘:
%
%?[header?recorddata]?=?edfRead（‘ecgca998.edf‘）;
%
%?%?EXAMPLE?2:
%?%?Read?records?3?and?5?associated?with?file?‘ecgca998.edf‘:
%
%?header?=?ed

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-03-08?11:21??matlab?file\
?????文件????????9968??2016-03-08?09:35??matlab?file\edfread.m
?????文件????????6129??2016-03-08?11:21??matlab?file\readedf.m
?????文件?????????339??2016-03-08?09:35??matlab?file\test2.m