Editing On-base plus slugging (section)

==Equation==
The basic equation is

<math>OPS = OBP + SLG \,</math>
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where OBP is [[on-base percentage]] and SLG is [[Slugging percentage|slugging average]]. These averages are defined below as:

<math>OBP = \frac{H+BB+HBP} {AB+BB+SF+HBP}</math>

- the numerator "H + BB + HBP" effectively means "number of trips to first base at least"

- the denominator "AB + BB + SF + HBP" effectively means "total plate appearances", but does not include sacrifice bunts

This is because though a batter makes a trip to the plate he is not given an "AB" when he walks (BB or HBP) or when he hits the ball into play and is called out, but the action allows a run to score (SF). As a result, the 4 counts (AB + BB + SF +HBP) are needed to calculate a batter's total trips to the plate.

and

<math>SLG = \frac{TB} {AB}</math>

where:
*''H'' = [[Hit (baseball)|hits]]
*''BB'' = [[Base on balls|bases on balls]]
*''HBP'' = times [[hit by pitch]]
*''AB'' = [[at bat]]s
*''SF'' = [[Sacrifice fly|sacrifice flies]]
*''TB'' = [[total bases]]

In one equation, OPS can be represented as:

<math>OPS = \frac{AB*(H+BB+HBP)+TB*(AB+BB+SF+HBP)}{AB*(AB+BB+SF+HBP)}</math>