calculate an out degree ratio by dividing {HEAD ~ a number} of out degree correlation coefficients above a third threshold by {TAIL ~ a total number} of out degree correlation coefficients 
calculate an out degree ratio by dividing { HEAD ~ a number } of out degree correlation coefficients above a third threshold by { TAIL ~ a total number } of out degree correlation coefficients
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH