class_docstr: max of n of scipy.stats normal expon ...
  Example:
      maxnormal10 = RVmax( scipy.stats.norm, 10 )
      sample = maxnormal10( size=1000 )
      sample.cdf = cdf ^ n,  ppf ^ (1/n)
code: def _pdf(self, x, *args, **kw):
      return (
          self.n
          * self.dist.pdf(x, *args, **kw)
          * self.dist.cdf(x, *args, **kw) ** (self.n - 1)
      )
  
imports: from scipy import stats
label_desc: Use image node_id 2 for calling the MaxDist obj's underlying member method code with example usage: obj._pdf(x) and returns: unknown