def METHOD_NAME(self, varName):
    #print self.ps
    import matplotlib.pyplot as plt
    plt.figure()
    #print varName
    xv = self.ps[varName].ravel()
    #sp = self.res['startParams'][varName]
    yv = self.res['fitResults'][varName]
    if hasattr(self, varName):
        #sp = sp + self.__getattribute__(varName)
        yv = yv + self.__getattribute__(varName)
    #err = self.res['fitError'][varName]
    plt.plot([xv.min(), xv.max()], [xv.min(), xv.max()])
    #plot(xv, sp, '+', label='Start Est')
    plt.plot(xv, yv, 'x', label='Fitted')
    plt.ylim((yv).min(), (yv).max())
    #legend()
    plt.title(varName)
    plt.xlabel('True Position')
    plt.ylabel('Estimated Position')