def gaussian(self, x, p):
        y = (1.0 / (p[1] * numpy.sqrt(2*numpy.pi)) *
             numpy.exp(-(x - p[0])**2 / (2*p[1]**2))) * p[2]
        return y
Gaussian fitting function in 1D.  Makes a sine function with
dataset/ETHPy150Open ejeschke/ginga/ginga/util/iqcalc.py/IQCalc.gaussian