| % eegplotsold() - display data in a clinical format without scrolling | |
| % | |
| % Usage: | |
| % >> eegplotsold(data, srate, 'chanfile', 'title', ... | |
| % yscaling, epoch, linecolor,xstart,vertmark) | |
| % | |
| % Inputs: | |
| % data - data matrix (chans,frames) | |
| % srate - EEG sampling rate in Hz (0 -> 256 Hz) | |
| % 'chanfile' - file of channel info, topoplot() style, (0 -> chan nos) | |
| % 'title' - plot title string {0 -> 'eegplotsold()'} | |
| % yscaling - initial y scaling factor (0 -> 300) | |
| % epoch - how many seconds to display in window (0 -> 10 sec) | |
| % linecolor - color of eeg (0 -> 'y') | |
| % xstart - start time of the data {0 -> 0} | |
| % vertmark - vector of frames to mark with vertical lines {0 -> none} | |
| % | |
| % Author: Colin Humphries, CNL, Salk Institute, La Jolla, 3/97 | |
| % | |
| % See also: eegplot(), eegplotold(), eegplotgold() | |
| % Copyright (C) Colin Humphries, CNL, Salk Institute 3/97 from eegplotold() | |
| % | |
| % This program is free software; you can redistribute it and/or modify | |
| % it under the terms of the GNU General Public License as published by | |
| % the Free Software Foundation; either version 2 of the License, or | |
| % (at your option) any later version. | |
| % | |
| % This program is distributed in the hope that it will be useful, | |
| % but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| % GNU General Public License for more details. | |
| % | |
| % You should have received a copy of the GNU General Public License | |
| % along with this program; if not, write to the Free Software | |
| % Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| % 05-01-97 added xstart argument -sm | |
| % 05-20-97 added read of icadefs.m | |
| % 06-12-97 EPOCH -> epoch line 71 below -sm | |
| % 8-10-97 Clarified chanfile type -sm | |
| % 12-08-97 Added isstr(titleval) test -sm | |
| % 02-09-98 legnth(data)->size(data,2) -sm | |
| % 01-25-02 reformated help & license, added links -ad | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| function y = eegplotsold(data, srate, channamefile, titleval, yscaling, epoch, linecolor,xstart,vertmark) | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Define defaults | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| icadefs; % read MAXEEGPLOTCHANS, DEFAULT_SRATE, DEFAULT_EPOCH from icadefs.m | |
| if nargin < 1 | |
| help eegplotsold % print usage message | |
| PLOT_TIME = 10; | |
| data = 0.5*randn(8,floor(DEFAULT_SRATE*PLOT_TIME*2)); | |
| titleval = ['eegplotsold() example - random noise']; % show example plot | |
| end | |
| [chans,frames] = size(data); %size of data matrix | |
| % set initial spacing | |
| DEFAULT_SPACING = max(max(data')-min(data')); | |
| % spacing_var/20 = microvolts/millimeter with 21 channels | |
| % for n channels: 21/n * spacing_var/20 = microvolts/mm | |
| % for clinical data. | |
| DEFAULT_PLOTTIME = 10; % default 10 seconds per window | |
| DEFAULT_TITLE = 'eegplotsold()'; | |
| errorcode=0; % initialize error indicator | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Allow for different numbers of arguments | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| if nargin < 9, | |
| vertmark = 0; | |
| end | |
| if nargin < 8, | |
| xstart = 0; | |
| end | |
| if nargin < 7 | |
| linecolor = 'y'; % DEFAULT LINECOLOR | |
| end | |
| if linecolor == 0, | |
| linecolor = 'y'; % DEFAULT LINECOLOR | |
| end | |
| if nargin < 6 | |
| PLOT_TIME = 0; | |
| else | |
| PLOT_TIME = epoch; | |
| end | |
| if nargin < 5 | |
| spacing_var = 0; | |
| else | |
| spacing_var = yscaling; | |
| end | |
| if spacing_var == 0 | |
| spacing_var = DEFAULT_SPACING; | |
| end | |
| if nargin < 4 | |
| titleval = DEFAULT_TITLE; | |
| end | |
| if ~isstr(titleval) | |
| if titleval == 0 | |
| titleval = DEFAULT_TITLE; | |
| else | |
| help eegplotsold | |
| return | |
| end | |
| end | |
| if nargin < 3 | |
| channamefile = 0; | |
| end | |
| if nargin < 2 | |
| srate = DEFAULT_SRATE; | |
| end | |
| if srate == 0, | |
| srate = DEFAULT_SRATE; | |
| end; | |
| if PLOT_TIME == 0 | |
| PLOT_TIME = ceil(frames/srate); | |
| if PLOT_TIME > DEFAULT_EPOCH | |
| PLOT_TIME = DEFAULT_EPOCH; | |
| end | |
| end | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Define internal variables | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| maxtime = frames / srate; %size of matrix in seconds | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Read the channel names | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| if channamefile ~=0, % read file of channel names | |
| chid = fopen(channamefile,'r'); | |
| if chid <3, | |
| fprintf('plotdata: cannot open file %s.\n',channamefile); | |
| errorcode=2; | |
| channamefile = 0; | |
| else | |
| % fprintf('Chan info file %s opened\n',channamefile); | |
| end; | |
| if errorcode==0, | |
| channames = fscanf(chid,'%d %f %f %s',[7 MAXEEGPLOTCHANS]); | |
| channames = channames'; | |
| channames = setstr(channames(:,4:7)); % convert ints to chars | |
| [r c] = size(channames); | |
| for i=1:r | |
| for j=1:c | |
| if channames(i,j)=='.', | |
| channames(i,j)=' '; % convert dots to spaces | |
| end; | |
| end; | |
| end; | |
| % fprintf('%d channel names read from file.\n',r); | |
| if (r>chans) | |
| fprintf('Using first %d names.\n',chans); | |
| channames = channames(1:chans,:); | |
| end; | |
| if (r<chans) | |
| fprintf('Only %d channel names read.\n',r); | |
| end; | |
| end; | |
| end | |
| if channamefile ==0, % plot channel numbers | |
| channames = []; | |
| for c=1:chans | |
| if c<10, | |
| numeric = [' ' int2str(c)]; % four-character fields | |
| else | |
| numeric = [' ' int2str(c)]; | |
| end | |
| channames = [channames;numeric]; | |
| end; | |
| end; % setting channames | |
| channames = str2mat(channames, ' '); % add padding element to Y labels | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Make matrix of x-tick labels | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Xlab = num2str(0); | |
| % for j = 1:1:PLOT_TIME | |
| % Q = num2str(0+j); | |
| % Xlab = str2mat(Xlab, Q); | |
| % end | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Set Graph Characteristics | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| hold on; | |
| set (gca, 'xgrid', 'on') % Xaxis gridlines only | |
| set (gca, 'GridLineStyle','-') % Solid grid lines | |
| % set (gca, 'XTickLabel', Xlab) % Use Xlab for tick labels | |
| % set (gca, 'XTick', 0*srate:1.0*srate:PLOT_TIME*srate) | |
| set (gca, 'Box', 'on') | |
| set (gca, 'Ytick', 0:spacing_var:chans*spacing_var) % ytick spacing on channels | |
| set (gca, 'TickLength', [0.02 0.02]) | |
| title(titleval) % title is titleval | |
| axis([xstart xstart+PLOT_TIME 0 (chans+1)*spacing_var]); | |
| set (gca, 'YTickLabels', flipud(channames),'FontSize',14) % write channel names | |
| % Matlab-5 requires YTickLabels | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| % Plot the selected EEG data epoch | |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| xx = xstart:1/srate:xstart+PLOT_TIME-0.9/srate; % x-values | |
| xx = xx(:,1:size(data,2)); | |
| for i = 1:chans | |
| F = data(chans-i+1,:); | |
| F = F - mean(F) + i*spacing_var; % add offset to y-values | |
| plot (xx,F,'clipping','off','Color',linecolor); % channel plot with x-values | |
| end | |
| if xstart<0 & xstart+PLOT_TIME > 0 | |
| linetime = round(-xstart/srate); | |
| line ([linetime linetime],[1e10,-1e10]); | |
| end | |
| if vertmark ~= 0, | |
| for mark = vertmark, | |
| linetime = xstart + (mark-1)/srate; | |
| line ([linetime linetime],[-1e10,1e10],'Color','y','LineStyle',':'); | |
| end | |
| end | |