Tool for judging low pop?

PaulMaul

I've been thinking about how to identify cards in a set that are low pop. With small sets you can kind of eyeball it, but with something like 1972 Baseball it's tougher.

It would be cool if you could load the pop data into a spreadsheet, compile, say, the number of >= 9s for each card, and then rank the cards on a percentile basis. So it would tell you, e.g., Bob Barton is in the 15th percentile....15 percent of the set has a smaller number of 9/10s.

Then you could use this data together with anecdotal evidence to try and determine where "low pop" kicks in. 20th percentile? 10th?

I don't have the spreadsheet expertise to do this, but I'm sure someone does.

grote15

First you're designing your baseball cards with bizarre stats on back, now you want to design a resource tool for low pops, what's next? World Peace?? LOL..

PaulMaul

Next I plan to end pack re-sealing and eliminate shilling on eBay. Stay tuned!

LarkinCollector

<< <i>Next I plan to end pack re-sealing and eliminate shilling on eBay. Stay tuned! >>


I'd set my sights a little lower, go for world peace first

70ToppsFanatic

You CAN cut and paste the pop report into a spreadsheet
and then just sort on the column for the grade level of interest

I've done it many times.

PaulMaul

<< <i>You CAN cut and paste the pop report into a spreadsheet
and then just sort on the column for the grade level of interest

I've done it many times. >>



I guess just sorting on the combined 9/10 population would paint a pretty good picture. I think a percentile ranking would be nice, but I guess that could be easily obtained by just normalizing by the set size. I.e. For 1972 once you've sorted, you would just generate a column for (787 - rank + 1)/787. Does that sound right?

70ToppsFanatic

I've done several variations on some years to determine things like
relative scarcity within the set itself across all grades, versus other years,
at the same grade levels, etc.

I've used the results for both slabbed card evaluation, and also as input to unopened
product valuation and comparison.

The possibilities are almost limitless.

mrpeanut39

I like to sort by total graded. The low pops are what they are, but I think this adds another facet. Chances are the well known low pops are getting cracked out so the total graded will go up. I think you can find some unsung low pops using total graded.