add --histogram option

    Draw power/time plot

  --stat

    Print mean voltage, current, and power as well as total energy consumption.

  --histogram=<n>

    Draw histogram of reported energy values per measurement interval

    (i.e., the differences between each pair of consecutive total energy readings)

    using <n> buckets.

DEPENDENCIES

if __name__ == '__main__':

    try:

        optspec = ('help load= save= skip= threshold= threshold-peakcount= plot stat')

        optspec = ('help load= save= skip= threshold= threshold-peakcount= plot stat histogram=')

        raw_opts, args = getopt.getopt(sys.argv[1:], "", optspec.split(' '))

        for option, parameter in raw_opts:

        plt.xlabel('Time [s]')

        plt.ylabel('Power [W]')

        plt.grid(True)

        if 'load' in opt:

            plt.title(opt['load'])

        plt.show()

    if 'histogram' in opt:

        plt.hist((data[1:, 3] - data[:-1, 3]) * 1e-9, bins=int(opt['histogram']))

        plt.show()