等级相关（rank correlation），相关的一种。顺序变量之间的相关。顺序变量的取值转换成等级值。适用于原始资料为顺序变量的数据，或原始资料为等距或等比变量，但总体分布非正态，不宜用积差相关分析的数据。常用的等级相关系数有斯皮尔曼等级相关系数rs、肯德尔和谐系数等。
... correlation between relative 亲缘间相关 correlation by rank 等级相关 correlation center 关联中枢 ...
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捐赠惯习之间的等级相关（Spearman Correlation）分析反映，仅外资公司的捐赠指向和捐赠管理之间存在一定程度的正相关（r=0.348，p＜0.01），三个惯习变量之间的其他相关性都很弱...
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... Grade 等级 Grade correlation 等级相关 Gradual failure 逐渐故障，渐变失效 Granduation of curve 曲线递合 ...
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斯皮尔曼等级相关系数 Spearman's Rank Correlation Coefficient
等级相关系数 rank correlation coefficent ; [统计] Coefficient of rank correlation ; Spearman rank correlation coefficient ; Spearman coefficient of rank correlation
斯皮尔曼等级相关 Spearman rank correlation ; Spearman rank-order correlation
肯德尔等级相关系数 Kendall rank correlation coefficient
第六节肯德尔等级相关 Kendall Correlation
偏等级相关系数 partial rank correlation coefficient
史匹曼等级相关系数 Spearmans rank correlation coefficient ; Spearman rank ; Spearman's rank correlation coefficient
等级相关法 [统计] method of rank correlation ; rank correlation method
等级相关分析表明：多种不良行为之间存在相关关系。
The analysis of spearman rank correlation showed that there were correlations among risk behaviors.
资料采用秩和检验和等级相关分析的统计学处理方法。
Data were analyzed by rank sum test and Spearman correlation test.
CEA阳性强度等级相关分析也显示CEA含量与胃癌及萎缩性胃炎病变程度是极明显的正相关（R＞0．7）。
The CEA content was positively correlated with the lesion degress of atrophic gastritis or gastric cancer (R> 0. 7).
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