Provide statistics on a split column
- continuous:
  - distribution / histogram
  - mean
  - median
  - standard deviation
  - range (min/max)
- discrete:
  - list of values (with frequency) if not too many 
  - number of unique values
Provide statistics on a split column: - continuous:
  - distribution / histogram
  - mean
  - median
  - standard deviation
  - range (min/max)
- discrete:
  - list of values (with frequency) if not too many 
  - number of unique values