32 lines
873 B
Matlab
32 lines
873 B
Matlab
function plotfanofactor(spikes, wmin, wmax)
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% Compute and plot Fano factor as a function of window size.
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%
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% Arguments:
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% spikes: a cell array of vectors of spike times in seconds
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% wmin: minimum window size in seconds
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% wmax: maximum window size in seconds
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windows = logspace(log10(wmin), log10(wmax), 100);
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mc = zeros(1, length(windows));
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vc = zeros(1, length(windows));
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for k = 1:length(windows)
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w = windows(k);
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n = counts(spikes, w);
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mc(k) = mean(n);
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vc(k) = var(n);
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end
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subplot(1, 2, 1);
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scatter(mc, vc, 'filled');
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xlabel('Mean count');
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ylabel('Count variance');
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subplot(1, 2, 2);
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scatter(1000.0*windows, vc ./ mc, 'filled');
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xlabel('Window [ms]');
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ylabel('Fano factor');
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xlim(1000.0*[windows(1) windows(end)])
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ylim([0.0 1.1]);
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set(gca, 'XScale', 'log');
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end
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