code: def error_fro(m, m_hat):
      return np.linalg.norm(np.triu(m - m_hat, 1), ord="fro")
  
file_path: skggm/inverse_covariance/profiling/metrics.py
imports: import numpy
label_desc: Use image node_id 7 for calling a global function with example usage: error_fro(m, m_hat) and returns: np