simulated data
original sigx,sigy
     0.00000     1.00000     0.31623  9999.00000
     0.72599     0.95210     1.04542     0.97558
    -0.18714     1.02479     0.99117     0.99979
same vector sigx[], sigy[]
     0.00000     1.00000     0.31623  9999.00000
     0.23506     0.98149     0.99551     0.97719
    -0.25304     1.02001     0.97671     0.97288

original data
original sigx,sigy
     0.00000     1.00000     0.02938  9999.00000
    -0.12970     1.01283     0.03311     0.00000
    -0.14820     1.04412     0.08334     0.00000
same vector sigx[],sigy[]
     0.00000     1.00000     0.02654  9999.00000
    -0.04726     0.99838     0.31623     1.00000
    -0.08394     1.01478     0.05856     0.33434
