wham-2d Px[=0|pi|val] hist_min_x hist_max_x num_bins_x \
Py[=0|pi|val] hist_min_y hist_max_y num_bins_y \
tol temperature numpad metadatafile freefile \
[num_MC_trials random_seed]
The command line arguments largely have the same meaning as they do for the one dimensional wham program.
The periodicity arguments are not optional.
``Px'' by itself indicates that the first dimension of the reaction coordinate has a period of 360. ``Px=0'' turns off periodicity. ``Px=pi'' specifies a period of 2*pi, and ``Px=val'' allows you to choose an arbitrary value for the period.
hist_min_x, hist_max_x, and num_bins_x behave exactly like hist_min, hist_max, and num_bins do in the 1 dimensional program.
Py, hist_min_y, etc., behave the same as Px, hist_min_x, etc., except they control the second coordinate of the PMF.
The remaining parameters have the same meaning as in the 1 dimensional wham program.