• In statistics, the Kendall rank correlation coefficient, commonly referred to as Kendall's τ coefficient (after the Greek letter τ, tau), is a statistic...
    31 KB (5,437 words) - 21:11, 2 April 2025
  • Thumbnail for Spearman's rank correlation coefficient
    In statistics, Spearman's rank correlation coefficient or Spearman's ρ is a number ranging from -1 to 1 that indicates how strongly two sets of ranks are...
    33 KB (4,340 words) - 15:33, 28 May 2025
  • A correlation coefficient is a numerical measure of some type of linear correlation, meaning a statistical relationship between two variables. The variables...
    8 KB (754 words) - 05:11, 27 February 2025
  • concordant pairs minus the number of discordant pairs (see Kendall tau rank correlation coefficient). The sum ∑ a i j 2 {\displaystyle \sum a_{ij}^{2}} is...
    14 KB (2,556 words) - 22:44, 24 May 2025
  • Thumbnail for Correlation
    \end{aligned}}} Rank correlation coefficients, such as Spearman's rank correlation coefficient and Kendall's rank correlation coefficient (τ) measure the...
    39 KB (5,359 words) - 05:34, 20 May 2025
  • Thumbnail for Pearson correlation coefficient
    In statistics, the Pearson correlation coefficient (PCC) is a correlation coefficient that measures linear correlation between two sets of data. It is...
    58 KB (8,383 words) - 04:12, 17 May 2025
  • between the rankings of athletes in two tournaments. And the Kendall rank correlation coefficient is another approach. Alternatively, intersection/overlap-based...
    5 KB (702 words) - 06:09, 2 March 2025
  • Kendall's W (also known as Kendall's coefficient of concordance) is a non-parametric statistic for rank correlation. It is a normalization of the statistic...
    11 KB (1,929 words) - 23:19, 2 November 2023
  • binary variables. In machine learning, it is known as the Matthews correlation coefficient (MCC) and used as a measure of the quality of binary (two-class)...
    25 KB (3,802 words) - 20:08, 23 May 2025
  • {\displaystyle K_{d}} ) must not be confused with the Kendall tau rank correlation coefficient ( K c {\displaystyle K_{c}} )  used in statistics. They...
    9 KB (1,514 words) - 15:18, 17 April 2025
  • done by non-parametric methods, e.g. Mann-Kendall test, which is a version of Kendall rank correlation coefficient. Smoothing can also be used for testing...
    4 KB (468 words) - 02:07, 18 September 2024
  • The Kendalls, a former American country music duo Kendall 32, a fiberglass cruising boat of the late 1960s Kendall tau rank correlation coefficient, developed...
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  • Thumbnail for Maurice Kendall
    Maurice George Kendall, FBA (6 September 1907 – 29 March 1983) was a prominent British statistician. The Kendall tau rank correlation is named after him...
    11 KB (1,287 words) - 20:48, 15 March 2025
  • value of Y. The Kendall tau distance between two series is the total number of discordant pairs. The Kendall tau rank correlation coefficient, which measures...
    3 KB (378 words) - 20:24, 23 April 2021
  • and alternative measures such as the intraclass correlation coefficient are recommended. The coefficient of variation fulfills the requirements for a measure...
    30 KB (4,017 words) - 13:36, 17 April 2025
  • statistical procedures. For example, it is equivalent to Kendall's tau correlation coefficient if one of the variables is binary (that is, it can only...
    44 KB (5,746 words) - 20:16, 8 April 2025
  • Thumbnail for Autocorrelation
    normalize the autocovariance function to get a time-dependent Pearson correlation coefficient. However, in other disciplines (e.g. engineering) the normalization...
    39 KB (5,833 words) - 21:51, 7 May 2025
  • Thumbnail for Ronald Graham
    between the two permutations (a non-normalized version of the Kendall rank correlation coefficient), and E {\displaystyle E} is the minimum number of two-element...
    53 KB (4,559 words) - 08:41, 24 May 2025
  • numerical relationship between two variables of interest, using their correlation coefficient will give misleading results if there is another confounding variable...
    24 KB (3,782 words) - 08:17, 28 March 2025
  • tetrachoric correlation coefficient but it is only applicable to 2 × 2 tables. Polychoric correlation is an extension of the tetrachoric correlation to tables...
    15 KB (1,945 words) - 20:16, 30 October 2023
  • is similar to rank correlation coefficients like Spearman's rank correlation coefficient and the Kendall rank correlation coefficient but also explicitly...
    4 KB (763 words) - 23:16, 24 August 2024
  • Thumbnail for Cross-correlation
    Pearson correlation coefficient. However, in other disciplines (e.g. engineering) the normalization is usually dropped and the terms "cross-correlation" and...
    26 KB (4,083 words) - 05:53, 30 April 2025
  • size for the signed-rank test, one can use the rank-biserial correlation. If the test statistic T is reported, the rank correlation r is equal to the test...
    40 KB (6,443 words) - 05:06, 19 May 2025
  • The Kendall test may refer to: Kendall tau rank correlation coefficient, also called the Kendall tau test A test of the strength of the abdominal muscles...
    221 bytes (62 words) - 02:11, 29 December 2019
  • Thumbnail for Q–Q plot
    plot correlation coefficient" (PPCC plot) is the correlation coefficient between the paired sample quantiles. The closer the correlation coefficient is...
    21 KB (2,518 words) - 00:48, 20 March 2025
  • pi and Fleiss' kappa; or inter-rater correlation, concordance correlation coefficient, intra-class correlation, and Krippendorff's alpha. There are several...
    19 KB (2,480 words) - 14:11, 26 May 2025
  • Thumbnail for Time series
    as stochastic series Pearson product-moment correlation coefficient Spearman's rank correlation coefficient Data interpreted as a probability distribution...
    43 KB (5,025 words) - 15:47, 14 March 2025
  • Thumbnail for Receiver operating characteristic
    from the real class) and their geometric mean is the Matthews correlation coefficient.[citation needed] Whereas ROC AUC varies between 0 and 1 — with...
    62 KB (7,926 words) - 22:46, 28 May 2025
  • Covariance (category Covariance and correlation)
    variances that are in common for the two random variables. The correlation coefficient normalizes the covariance by dividing by the geometric mean of...
    29 KB (4,754 words) - 01:56, 4 May 2025
  • contrast, the marginal effect of xj on y can be assessed using a correlation coefficient or simple linear regression model relating only xj to y; this effect...
    75 KB (10,482 words) - 17:25, 13 May 2025