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Table 4 Table 4

From: A robust measure of correlation between two genes on a microarray

  

true correlation

  

0.5

0.7

0.9

  

BWC

SP

BWC

SP

BWC

SP

sample size

10

0.894

0.918

0.874

0.802

0.853

0.529

 

20

0.900

0.894

0.896

0.788

0.892

0.535

 

50

0.898

0.878

0.915

0.795

0.920

0.607

 

100

0.910

0.888

0.912

0.791

0.908

0.608

  1. Efficiency of biweight correlation (BWC) vs. Spearman (SP) correlation. All values are simulated variance of correlation of interest (biweight or Spearman) divided by the variance of the Pearson correlation. Simulations are based on 10,000 samples of standard normal bivariate data sets with the appropriate sample size and correlation.