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 _ppf(self, q, *args, **kw):
      # y = F(x) ^ n  <=>  x = F-1( y ^ 1/n)
      return self.dist.ppf(q ** (1.0 / self.n), *args, **kw)
  
imports: from scipy import stats
label_desc: Use image node_id 4 for calling the MaxDist obj's underlying member method code with example usage: obj._ppf(q) and returns: self