TD_QQNorm checks whether the values in the specified input table columns are normally distributed. The function returns the quantiles of the column values and corresponding theoretical quantile values from a normal distribution. If the column values are normally distributed, then the quantiles of column values and normal quantile values appear in a straight line when plotted on a 2D graph.
- This function requires the UTF8 client character set for UNICODE data.
- This function does not support Pass Through Characters (PTCs).
For information about PTCs, see Teradata Vantage™ - Advanced SQL Engine International Character Set Support, B035-1125.
- This function does not support KanjiSJIS or Graphic data types.