THE BOOK--Playing The Percentages In Baseball

Dan, a suggestion on showing the batting average, since that treats all singles, doubles, triples, HR the same.

Similar to wOBA, you can have wcBA (weighted contacted batting average).  Since a single is worth around .47, a double is .77, and a triple is 1.04, and HR is 1.40 you bump each of those by the value of the out (.29), giving you relative weights of .76, 1.06, 1.33, 1.69 respectively.  With singles being 67% of the weight, doubles 20%, triples 2%, HR 11%, that makes the average hit worth .93 runs more than the out.  Using that as the base, you get roughly these index values:
.80 1B
1.15 2B
1.40 3B
1.80 HR

Use those numbers, or something along those lines (I did a best-estimate on those numbers), and you get batting average on contacted balls, properly weighted.

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A “career” (2003-2007) totals line for each player/hand, and player would be wonderful.

While I’m here: in the grid display, can you add a column showing “cPA” (total contacted PA).  It is also not there for the main display chart at the left.  Would be good there too. You have the number in the 4 normal display charts. 

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Also in the grid display, when you cut/paste, the column headers don’t come along.  Since they are static and non-numerous, no big deal for the user to type it in by hand.  But, in case it’s easy for you to change.

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How about one for park/hand (preferred at the “career” level, but by year is nice too).

If the wcBA is too esoteric, cSLG (slugging on contacted balls) is just as good.  The wcBA (unscaled) is pretty much halfway between cBA and cSLG.

That is, where HR to single is 1:1 in BA, and 4:1 in SLG, the average would be 2.5:1, which is close to the 1.8:0.8 I’m showing.

What I like about the wcBA is that when it matches cBA, then we know the hitter had a “normal” slugging profile.

Update:
http://danagonistes.blogspot.com/2007/11/bipchart-v25.html