code: def gaussian_cdf(h, Xi, x):
      return 0.5 * h * (1 + erf((x - Xi) / (h * np.sqrt(2))))
  
file_path: statsmodels/statsmodels/nonparametric/kernels.py
imports: import numpy
  from scipy.special import erf
label_desc: Use image node_id 8 for calling a global function with example usage: gaussian_cdf(h, Xi, x) and returns: unknown