rank correlation coefficient
related: copula function
related: non-parametric method
broader: correlation coefficient
preferred label: ضریب همبستگی رتبه‌ای @fa
type: Concept

correlation coefficient
preferred label: ضریب همبستگی @fa
type: Concept
narrower: rank correlation coefficient

copula function
preferred label: تابع مفصل @fa
type: Concept
related: rank correlation coefficient

non-parametric method
preferred label: روش ناپارامتری @fa
type: Concept
related: rank correlation coefficient