code: def nct_cdf(x, df, nc):
      return special.nctdtr(df, nc, x)
  
imports: import warnings
  import numpy
  from scipy import stats, optimize, special
  from statsmodels.tools.rootfinding import brentq_expanding
label_desc: Use image node_id 1 for calling a global function with example usage: nct_cdf(x, df, nc) and returns: special