Class RatioScale

All Implemented Interfaces:
Serializable, Measure

public class RatioScale extends NumericalMeasure
The ratio scale allows for both difference and ratio of two values. Examples include mass, length, duration, plane angle, energy and electric charge. The ratio type takes its name from the fact that measurement is the estimation of the ratio between a magnitude of a continuous quantity and a unit magnitude of the same kind. A ratio scale possesses a meaningful (unique and non-arbitrary) zero value. In comparison with Celsius scale, the Kelvin temperature scale is a ratio scale because it has a unique, non-arbitrary zero point called absolute zero. Most measurement in the physical sciences and engineering is done on ratio scales.

The geometric mean and the harmonic mean are allowed to measure the central tendency of ratio variables, in addition to the mode, median, and arithmetic mean. In fact, all statistical measures are allowed because all necessary mathematical operations are defined for the ratio scale.

See Also:
  • Constructor Details

    • RatioScale

      public RatioScale(NumberFormat format)
      Constructor.
      Parameters:
      format - the number format.
  • Method Details