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scientificComputing/pointprocesses/code/plotisihist.m

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Matlab

function plotisihist(isis, binwidth)
% Plot and annotate histogram of interspike intervals.
%
% plotisihist(isis, binwidth)
%
% Arguments:
% isis: vector of interspike intervals in seconds
% binwidth: optional width in seconds to be used for the isi bins
% compute normalized histogram:
if nargin < 2
[pdf, centers] = isihist(isis);
else
[pdf, centers] = isihist(isis, binwidth);
end
% plot:
bar(1000.0*centers, pdf); % milliseconds on x-axis
xlabel('ISI [ms]')
ylabel('p(ISI) [1/s]')
% annotation:
misi = mean(isis);
sdisi = std(isis);
text(0.95, 0.8, sprintf('mean=%.1f ms', 1000.0*misi), ...
'Units', 'normalized', 'HorizontalAlignment', 'right')
text(0.95, 0.7, sprintf('std=%.1f ms', 1000.0*sdisi), ...
'Units', 'normalized', 'HorizontalAlignment', 'right')
text(0.95, 0.6, sprintf('CV=%.2f', sdisi/misi), ...
'Units', 'normalized', 'HorizontalAlignment', 'right')
end