Statistics - (Interval|Delta) (Measurement)

> (Statistics|Probability|Machine Learning|Data Mining|Data and Knowledge Discovery|Pattern Recognition|Data Science|Data Analysis)

1 - About

An interval (measurement|variable) gives:

  • distance between two values
  • and order (rank) between this distances

3 - Properties

The following properties applied to interval measurement:

  • The interval between each unit are equals (temperature between 21 and 22 degree is the same than between 22 and 23 degree)
  • There is no absolute (true zero) when interval are scaled.

4 - Example

  • longitude and latitude
  • temperature (either Celsius or Fahrenheit degrees). A change of 1C is the same if the temperature goes from 0 C to 1 C, as it is when the temperature goes from 40C to 41C.
  • time,
  • distance,
  • area
  • volume