% Compute the uncorrected variance coefficient of a spike train p
% by taking the integral of the autocorrelation function
% over a window of radius tau and correcting.
% Multiply this number by tau to get the variance of the 
% spike count over an interval of size tau.
% v=var_coeff(p,tau,dt)


function v=var_coeff(p,tau,dt)

% The variance coefficient is just the
% cov coefficient of p with itself.
v=cov_coeff(p,p,tau,dt);