| Interface | Description |
|---|---|
| HistogramCounter |
HistogramCounter: used to calculate histogram values for one column
|
| Class | Description |
|---|---|
| CategoricalHistogramCounter |
A counter for building histograms of Categorical columns
|
| DoubleHistogramCounter |
A counter for building histograms on a Double column
|
| HistogramAddFunction |
An adder function used in the calculation of histograms
|
| HistogramCombineFunction |
A combiner function used in the calculation of histograms
|
| StringHistogramCounter |
A counter for building histograms (of String length) on a String column
|