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Author Topic: Data Mining: Card Impact Factor  (Read 882 times)

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markus

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Re: Data Mining: Card Impact Factor
« Reply #25 on: May 01, 2018, 03:22:03 pm »
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Or like, on board where you go for a Stash deck and you buy Duchy, Duchess is a "might as well" addition. Or am I misinterpreting the statistic.

It's the other way around: on a board with Duchess, you're more likely to go for a Stash deck. (We don't know the number for Duchess on a Stash board.)
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markusin

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Re: Data Mining: Card Impact Factor
« Reply #26 on: May 01, 2018, 04:07:29 pm »
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Or like, on board where you go for a Stash deck and you buy Duchy, Duchess is a "might as well" addition. Or am I misinterpreting the statistic.

It's the other way around: on a board with Duchess, you're more likely to go for a Stash deck. (We don't know the number for Duchess on a Stash board.)

But there's overlap isn't there? Like, Masterpiece/Feodum has a similarly high synergy factor to Feodum/Masterpiece.
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markus

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Re: Data Mining: Card Impact Factor
« Reply #27 on: May 01, 2018, 05:13:36 pm »
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Or like, on board where you go for a Stash deck and you buy Duchy, Duchess is a "might as well" addition. Or am I misinterpreting the statistic.

It's the other way around: on a board with Duchess, you're more likely to go for a Stash deck. (We don't know the number for Duchess on a Stash board.)

But there's overlap isn't there? Like, Masterpiece/Feodum has a similarly high synergy factor to Feodum/Masterpiece.
Yes, you'd usually expect that. For Feodum/Masterpiece both cards are not getting gained much without the other, but gained a lot when they are both present. For Capital/Mandarin I'd expect that Capital increases gain% of Mandarin more than the other way around.
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trivialknot

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Re: Data Mining: Card Impact Factor
« Reply #28 on: May 01, 2018, 05:18:41 pm »
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*ok, I have no idea why Duchess promotes Stash.

I do! When you gain a bunch of terminals for free, you don't have so much terminal space left so you'll buy Stash or Venture instead of a terminal $5. I don't think this effect would be at all visible today, but I'm like 90-93% sure that was really the reason in 2014.
I guess that makes sense.

FWIW there's less data for the promo cards, so they tend to have larger error margins.  That's why the promo cards show up disproportionately in the top synergies lists (and also why I had to remove Prince/Walled Village).
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