canberra: Canberra Distance

In OmicsMarkeR: Classification and Feature Selection for 'Omics' Datasets

Description

Calculates canberra distance between two vectors. In brief, the higher the canberra distance the greater the 'distance' between the two vectors (i.e. they are less similar).

Usage

canberra(x, y)

Arguments

x	numeric vector of ranks
y	numeric vector of ranks with compatible length to x

Value

Returns the canberra distance for the two vectors

Note

The canberra_stability function is used internally to return the canberra metric.

Author(s)

Charles E. Determan Jr.

References

Jurman G., Merler S., Barla A., Paoli S., Galea A., & Furlanello C. (2008) Algebraic stability indicators for ranked lists in molecular profiling. Bioinformatics 24(2): 258-264.

He. Z. & Weichuan Y. (2010) Stable feature selection for biomarker discovery. Computational Biology and Chemistry 34 215-225.

Examples

# Canberra demo
v1 <- seq(10)
v2 <- sample(v1, 10)
canberra(v1, v2)

canberra_stability(v1, v2)

Example output

[1] 2.752969
[1] 0.3943468

OmicsMarkeR documentation built on April 28, 2020, 6:54 p.m.