SPIDER The Spider Objects

Wilcoxon object - significance test of results

    A=wilcoxon(D,[L]) calculates the statistical significance of the median
    loss being greater than competitors for groups of results (data objects)
    D, with loss function/type L.  
    NOTE: Assumes you have the Matlab stats package, uses signrank.
      wilcoxon(train(cv({svm knn}),d))     or is equivalent to below  
      train(wilcoxon(cv({svm knn})),d)     or is equivalent to below  
      train(chain({ group(cv({svm knn}),'all') wilcoxon  }),d)