class_docstr: One real number column in a dataset.  May or may not be integer.
class_docstr_tok: ["One","real","number","column","in","a","dataset",".","May","or","may","not","be","integer","."]
code: def __init__(
      self, col_num, col_name, min_val, max_val, na_fraction, is_integer
  ):
      self.col_num = col_num
      self.col_name = col_name
      self.min_val = min_val
      self.max_val = max_val
      self.na_fraction = na_fraction
      self.is_integer = is_integer
  
imports: import sys
  import os
  import re
  from random import random
  from random import randrange
  from random import uniform
label_desc: Use image node_id 1 to create a new RealColumn object  with example: obj = RealColumn(col_num, col_name, min_val, max_val, na_fraction, is_integer)