Data set size: 689
========================
        Set i   Set j
min     0.0345  0.0476
max     2.2000  6.0000
mean    1.0517  1.0891
median  1.0278  1.0500
std     0.2814  0.3198

Pearson r:
        - correlation: 0.4766
        - p-value < .01

Cosine similarity: 0.9616
Root mean square error: 0.3116
Mean absolute error: 0.1828