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>>a=[-0.027524837896522
0.042076120632004
0.033839834660766
0.017211340803282
0.010057645665175
0.006540473513066
0.004579474624193
0.003380699633624
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>> a(~isnan(a))

ans =

  -0.027524837896522
   0.042076120632004
   0.033839834660766
   0.017211340803282
   0.010057645665175
   0.006540473513066
   0.004579474624193
   0.003380699633624

>> sum(a(~isnan(a)))

ans =

   0.090160751635588
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