KSLCore/ksl.utilities.statistic/IntegerFrequencyPlotDataIfc

IntegerFrequencyPlotDataIfc

interface IntegerFrequencyPlotDataIfc(source)

Minimal data contract required by IntegerFrequencyPlot to render a discrete bar chart.

All three arrays must be the same length, indexed in ascending value order: element i of values, frequencies, and proportions all refer to the same observed integer.

In-memory IntegerFrequency instances satisfy this naturally (values are maintained in a sorted map).
Database implementations must sort source rows by value before populating these arrays; DbIntegerFrequencyPlotData does this automatically in its constructor.

IntegerFrequencyIfc extends this interface.

Inheritors

DbIntegerFrequencyPlotData

IntegerFrequencyIfc

Properties

frequencies

abstract val frequencies: IntArray

Returns an array of size numberOfCells containing the frequencies for each value observed. The 0th element is the frequency for the value stored at element 0 of the array returned by the values property

proportions

abstract val proportions: DoubleArray

Returns an array of size numberOfCells containing the proportion by value. The 0th element is the proportion for the value stored at element 0 of the array returned by the values property, etc.

values

abstract val values: IntArray

Returns an array of size numberOfCells containing the observed values increasing by value. The 0th element of the array contains the smallest value observed, 1st element the next bigger value, etc.