code: def gaussian_distribution(mean, stdev, num_pts=50):
      
      warnings.warn("pyemu.helpers.gaussian_distribution() has moved to plot_utils",PyemuWarning)
      from pyemu import plot_utils
      return plot_utils.gaussian_distribution(mean=mean,stdev=stdev,num_pts=num_pts)
docs: get an x and y numpy.ndarray that spans the +/- 4
      standard deviation range of a gaussian distribution with
      a given mean and standard deviation. useful for plotting
  
      Parameters
      ----------
      mean : float
          the mean of the distribution
      stdev : float
          the standard deviation of the distribution
      num_pts : int
          the number of points in the returned ndarrays.
          Default is 50
  
      Returns
      -------
      x : numpy.ndarray
          the x-values of the distribution
      y : numpy.ndarray
          the y-values of the distribution