Lines 1 thru 8 are comments.
They are
identified by exclamation marks at the beginning of each line.
EDS will not
process lines that start with an exclamation mark.
Line 9 is a UDF. This line links the value of today's low with the
udf name Currentlow.
Line 10 is also a UDF.
This line links the lowest value of the low over a 70 day period beginning
8 days ago with the udf name Previouslow.
Line 11 is
a rule. The rule low looks for two
conditions to be met before it returns a true result. The first condition
is that the value of currentlow divided by previouslow must be greater than
0.995. The "and" in line 11 identifies that both conditions must
be met for the rule to be true. The second condition is that the value of
currentlow divided by previouslow must be less than 0.999. When the rule low
is scanned only tickers that have met both conditions are returned.