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
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2
< (y - y ) >
n n-d