Computing with Data by Guy Lebanon & Mohamed El-Geish

Computing with Data by Guy Lebanon & Mohamed El-Geish

Author:Guy Lebanon & Mohamed El-Geish
Language: eng
Format: epub
ISBN: 9783319981499
Publisher: Springer International Publishing


8.11 qq-Plots

Quantile-quantile plots, also known as qq-plots, are useful for comparing two datasets, one of which may be sampled from a certain distribution. They are essentially scatter plots of the quantiles of one dataset vs. the quantiles of another dataset. The shape of the scatter plot implies the following conclusions (the proofs are straightforward applications of probability theory). A straight line with slope2 1 that passes through the origin implies that the two datasets have identical quantiles, and therefore that they are sampled from the same distribution.



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