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Table 2 Descriptive statistics of groups of peaks as revealed by hierarchical clustering

From: Surface-enhanced laser desorption/ionization time-of-flight proteomic profiling of breast carcinomas identifies clinicopathologically relevant groups of patients similar to previously defined clusters from cDNA expression

Categorization Spearman correlation between peaks in the category
    N Median Mean Minimum Maximum % < 0.1 % 0.1 to 0.5 % > 0.5
1 1 1 120 0.76 0.74 0.35 0.99 0.0 8.3 91.7
   2 153 0.44 0.44 0.02 0.83 0.0 60.1 39.9
2 2 3 120 0.34 0.34 -0.14 0.94 0.0 50.1 33.2
   4 378 0.26 0.28 -0.26 0.92 5.6 74.6 19.8
  3 5 210 0.43 0.38 -0.29 0.96 5.2 57.6 37.1
   6 465 0.29 0.28 -0.42 0.90 11.0 68.0 21.1
  1. % < 0.1, percentage of correlations with value smaller than 0.1; % 0.1 to 0.5, percentage of correlations in the interval 0.1 to 0.5; % > 0.5, percentage of correlations with values greater than 0.5. Categories are ordered according to decreasing minimal correlation in the group. N, number of correlations between peaks in the category: N = (number of peaks in the category2 - number of peaks in the category)/2).