mtspectrumtrigpt

PURPOSE ^

Multi-taper time-frequency spectrum - point process times

SYNOPSIS ^

function [S,f,R,Serr]=mtspectrumtrigpt(data,E,win,tapers,pad,Fs,fpass,err,trialave,fscorr)

DESCRIPTION ^

 Multi-taper time-frequency spectrum - point process times

 Usage:

 [S,f,R,Serr]=mtspectrumtrigpt(data,E,win,tapers,pad,Fs,fpass,err,trialave,fscorr)
 Input: 
       data        (structure array of one channel of spike times; also accepts 1d column vector of spike times) -- required
       E           (event times) - required
       win         (in the form [winl winr] i.e window around each event)--
                                                 required
       tapers      (precalculated tapers from dpss, or in the form [NW K] e.g [3 5]) -- optional. If not 
                                                 specified, use [NW K]=[3 5]
        pad            (padding factor for the FFT) - optional. Defaults to 0.  
                         e.g. For N = 500, if PAD = 0, we pad the FFT 
                         to 512 points; if PAD = 2, we pad the FFT
                         to 2048 points, etc.
       Fs          (binning frequency for fft grid used to calculate fft of prolates. 1/Fs is the time between consecutive
                                   points on the grid used for evaluation of the prolates) - optional. Default 1.
                                   Note that this has to be consistent
                                   with the units used for spike times in
                                   data.
       fpass       (frequency band to be used in the calculation in the form
                                   [fmin fmax])- optional. 
                                   Default all frequencies between 0 and
                                   Fs/2.
       err         (error calculation [1 p] - Theoretical error bars; [2 p] Jackknife error bars,
                                   [0 p] or 0 - no error bars) - optional. Default 0.
       trialave (average over trials when 1, don't average when 0) -
                   optional. Default 0
       fscorr   (finite size corrections, 0 (don't use finite size corrections) or 1 (use finite size corrections) - optional
                (available only for spikes). Defaults 0.

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [S,f,R,Serr]=mtspectrumtrigpt(data,E,win,tapers,pad,Fs,fpass,err,trialave,fscorr)
0002 % Multi-taper time-frequency spectrum - point process times
0003 %
0004 % Usage:
0005 %
0006 % [S,f,R,Serr]=mtspectrumtrigpt(data,E,win,tapers,pad,Fs,fpass,err,trialave,fscorr)
0007 % Input:
0008 %       data        (structure array of one channel of spike times; also accepts 1d column vector of spike times) -- required
0009 %       E           (event times) - required
0010 %       win         (in the form [winl winr] i.e window around each event)--
0011 %                                                 required
0012 %       tapers      (precalculated tapers from dpss, or in the form [NW K] e.g [3 5]) -- optional. If not
0013 %                                                 specified, use [NW K]=[3 5]
0014 %        pad            (padding factor for the FFT) - optional. Defaults to 0.
0015 %                         e.g. For N = 500, if PAD = 0, we pad the FFT
0016 %                         to 512 points; if PAD = 2, we pad the FFT
0017 %                         to 2048 points, etc.
0018 %       Fs          (binning frequency for fft grid used to calculate fft of prolates. 1/Fs is the time between consecutive
0019 %                                   points on the grid used for evaluation of the prolates) - optional. Default 1.
0020 %                                   Note that this has to be consistent
0021 %                                   with the units used for spike times in
0022 %                                   data.
0023 %       fpass       (frequency band to be used in the calculation in the form
0024 %                                   [fmin fmax])- optional.
0025 %                                   Default all frequencies between 0 and
0026 %                                   Fs/2.
0027 %       err         (error calculation [1 p] - Theoretical error bars; [2 p] Jackknife error bars,
0028 %                                   [0 p] or 0 - no error bars) - optional. Default 0.
0029 %       trialave (average over trials when 1, don't average when 0) -
0030 %                   optional. Default 0
0031 %       fscorr   (finite size corrections, 0 (don't use finite size corrections) or 1 (use finite size corrections) - optional
0032 %                (available only for spikes). Defaults 0.
0033 
0034 % Output:
0035 %       S       (triggered spectrum in form frequency x channels/trials)
0036 %       f       (frequencies)
0037 %       R       (spike rate)
0038 %       Serr    (error bars)
0039 
0040 if nargin < 3; error('Need data, events and window parameters'); end;
0041 if nargin < 4; tapers=[3 5]; end;
0042 if nargin < 5;pad=0;end;
0043 if nargin < 6; Fs=1; end;
0044 if nargin < 7; fpass=[0 Fs/2]; end;
0045 if nargin < 8; err=0; end;
0046 if nargin < 9; trialave=0;end;
0047 if nargin < 10; fscorr=0; end;
0048 if isempty(tapers); tapers=[3 5]; end;
0049 if isempty(pad);pad=0;end;
0050 if isempty(Fs); Fs=1; end;
0051 if isempty(fpass); fpass=[0 Fs/2]; end;
0052 if isempty(err); err=0; end;
0053 if isempty(trialave);trialave=0;end;
0054 if isempty(fscorr);fscorr=0;end;
0055 
0056 data=createdatamatpt(data,E,Fs,win);
0057 trialave=1;
0058 if nargout==4; [S,f,R,Serr]=mtspectrumpt(data,tapers,pad,Fs,fpass,err,trialave,fscorr);
0059 else;[S,f,R,Serr]=mtspectrumpt(data,tapers,pad,Fs,fpass,err,trialave,fscorr);end;

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