পদ্ধতির তুলনা করুন

	Robust Pearson Correlation	Kendall Tau Rank Correlation	পিয়ারসন গুণফল-মুহূর্ত সহসম্বন্ধ গুণাঙ্ক	স্পিয়ারম্যান র‍্যাঙ্ক কোরিলেশন কোএফিসিয়েন্ট
ক্ষেত্র	পরিসংখ্যান	পরিসংখ্যান	পরিসংখ্যান	পরিসংখ্যান
পরিবার	Hypothesis test	Hypothesis test	Hypothesis test	Hypothesis test
উদ্ভবের বছর	1970s–1990s	1938	1895	1904
প্রবর্তক	Rand R. Wilcox and predecessors in robust statistics	Maurice G. Kendall	Karl Pearson	Charles Spearman
ধরন	Robust bivariate association measure	Rank-based association measure	Parametric correlation	Nonparametric rank-based correlation
মৌলিক উৎস	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Kendall, M. G. (1938). A new measure of rank correlation. Biometrika, 30(1–2), 81–93.	Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Lawrence Erlbaum Associates.	Spearman, C. (1904). The proof and measurement of association between two things. The American Journal of Psychology, 15, 72–101.
অপর নাম	winsorized correlation, percentage bend correlation, robust r, outlier-resistant correlation	Kendall's tau, Kendall tau-b, tau correlation, Kendall Tau Korelasyonu	pearson r, product-moment correlation, bivariate correlation, Pearson Korelasyon Analizi	Spearman's rho, Spearman rank-order correlation, Spearman Sıra Korelasyonu
সম্পর্কিত	3	4	4	4
সারসংক্ষেপ	The robust Pearson correlation is an outlier-resistant measure of linear association between two continuous variables. By applying Winsorizing, trimming, or percentage-bend transformations before computing the classic Pearson r, it retains the interpretability of a correlation coefficient while dramatically reducing the distortion caused by extreme values.	Kendall Tau is a nonparametric rank correlation coefficient introduced by Maurice G. Kendall in 1938 to measure the strength and direction of a monotone association between two ordinal or continuous variables. It is particularly suited to small samples and datasets containing many tied ranks, where the Spearman coefficient can be less stable.	The Pearson product-moment correlation coefficient (r) is a parametric measure of the direction and strength of the linear association between two continuous variables. Introduced by Karl Pearson in 1895, it remains the most widely used bivariate correlation statistic in the social, health, and natural sciences. The coefficient ranges from −1 (perfect negative linear relationship) to +1 (perfect positive), with 0 indicating no linear association.	The Spearman rank correlation coefficient (ρ) is a nonparametric measure of the monotonic association between two variables. Introduced by Charles Spearman in 1904, it converts raw observations to ranks and measures how consistently one variable increases as the other increases, without assuming a normal distribution or a linear relationship.