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. Author manuscript; available in PMC: 2017 Nov 8.
Published in final edited form as: Circ Cardiovasc Qual Outcomes. 2016 Nov 8;9(6):670–678. doi: 10.1161/CIRCOUTCOMES.116.003041

Figure 3.

Figure 3

SPOR distribution densities. The effect of five shared patient threshold values on the density of the SPOR value distributions in the collaboration network is shown. The SPOR value is in log2 form. The distribution narrows as the threshold is increased, revealing the trade off between the relative stability of an approximately normal distribution and the inclusion of potentially interesting relationships based on fewer shared encounters.