Computes the time reversal asymmetry statistic
-d delay (1)
-l number of points (whole file)
-x number of values to be skipped (0)
-c column to be read (1 or file,#)
-V verbosity level (0 = only fatal errors)
-h show this message
3 < (y - y ) > n n-d ------------------ 2 < (y - y ) > n n-d