file=$1
eig=$2 # get the distribution of eigenvalue eig
ns=$3
nt=$4

#echo "! ${file}"
awk -v ns=$ns -v nt=$nt -v eig=$eig '/EIGEN/{if( ($2 < 4*eig) && ($2 >= 4*eig-4 )){x+=sqrt($3);i++}if(i==4){print x/4;x=0;i=0} }' $file*