我正在将成对的列数据与 wilcoxon 秩和检验进行比较,并且在大多数比较中我得到了完全相同的 pvalue。我想知道从数据来看是我犯了错误还是一切正常。以下是一些比较。
这是我使用的比较
wtresult<-wilcox.test(datachunk[,i],datachunk[,(i+1)],paired=FALSE)
这是上面使用的数据的结果。
X1 X2 X3
339.53 354.11 435.56 425.34 434.64 436.08
X1 X2 X3
312.1 282.2 281.6 NA NA NA
Wilcoxon rank sum test
data: datachunk[, i] and datachunk[, (i + 1)]
W = 18, p-value = 0.02381
alternative hypothesis: true location shift is not equal to 0
X1 X2 X3
161.21 150.01 183.47 201.51 234.70 321.00
X1 X2 X3
501.0 520.1 500.7 NA NA NA
Wilcoxon rank sum test
data: datachunk[, i] and datachunk[, (i + 1)]
W = 0, p-value = 0.02381
alternative hypothesis: true location shift is not equal to 0
X1 X2 X3
247.79 159.64 192.00 262.86 403.33 336.21
X1 X2 X3
60.33 66.04 55.23 NA NA NA
Wilcoxon rank sum test
data: datachunk[, i] and datachunk[, (i + 1)]
W = 18, p-value = 0.02381
alternative hypothesis: true location shift is not equal to 0
X1 X2 X3
17.12 15.83 16.88 17.61 18.97 45.92
X1 X2 X3
321.8 329.7 334.4 NA NA NA