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Table 2 Pearson correlation and Spearman rank correlation (* for values with significance levels below 0.05)

From: A Data Envelopment Analysis approach for accessibility measures: Simulating operational enhancement scenarios for railway across Europe

  Scenario 45 Baseline 2005 Scenario 90 Scenario 200
LA NA PA PDA LA NA PA PDA LA NA PA PDA LA NA PA PDA
Pearson LA 1.0000     1.0000     1.0000     1.0000    
NA 0.0180 1.0000    −0.0232 1.0000    −0.2456* 1.0000    n/a   
PA −0.3761* 0.2732* 1.0000   −0.6422* −0.3144* 1.0000   −0.6521* −0.1209* 1.0000   −0.7664* n/a  
PDA −0.1300* 0.2375* 0.8152* 1.0000 −0.3872* −0.2372* 0.8407* 1.0000 −0.3853* −0.1130* 0.8401* 1.0000 −0.4661* n/a 0.8472*
Spearman LA 1.0000     1.0000     1.0000     1.0000    
NA 0.0784* 1.0000    −0.1027* 1.0000    −0.2230* 1.0000    n/a   
PA −0.5011* 0.2527* 1.0000   −0.7782* −0.3418* 1.0000   −0.7537* −0.2206* 1.0000   −0.8193* n/a  
PDA −0.1986* 0.3199* 0.7540* 1.0000 −0.5974* −0.2708* 0.8395* 1.0000 −0.5973* −0.1520* 0.8547* 1.0000 −0.6600* n/a 0.9126*