这段代码基于多个数据集计算Spearman等级相关系数,并提供相关的t检验和p值。代码改编自Numerical Recipes一书的示例。例如: >> x = [1 2 3 3 3]'; >> y = [1 2 2 4 3; rand(1,5)]'; >> [r,t,p] = spear(x,y) >> [r,t,p]=spear(x,y) r = 0.8250 -0.6000 t = 2.5285 -1.2990 p = 0.0855 0.2848