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Old April 23, 2001, 06:31   #1
weimar_republic
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Children Per Family
This cut and pasted from civfanatacs. maybe you guys can make sence of it. if so, contact me at weimar_republic@hotmail.com


here is what I have been able to find out on the children per
family:

city size-foodeaten-foodsurplus-children it makes
1-2-4-10.0
2-4-5-8.6
3-6-5-7.0
2-2-1-0.7
1-2-2-6.0
2-4-4-7.3
3-6-6-8.0
3-3-(-3)-(-1.0) size three with 3 food = -1.0 children
4-8-8-8.4
5-10-10-8.6
6-12-12-8.8
7-14-14-9.0
17-34-22-6.8
X=anything
X-2X-0-2.0
^^thats not it BTW

so, whats the formula here? anyone have any ideas?
it MUST have a +2 at the end...
so without the +2 it would be
2-4-5-6.6
2-2-1-(-1.3)
2-4-4-5.3
5-10-10-6.6
and others
...
hummm use a graphing calculator??

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Old April 23, 2001, 14:33   #2
airdrik
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Marquis: in answer to your first question, this is the number for one city, which is averaged with the numbers for the rest of th cities in your civ to get the average cpf for your civ.

There is probably a formula where you take city size*food surplus*some other math junk=growth rate for that city.
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Old April 23, 2001, 14:39   #3
drake
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Or you could just say:

The civ with the highest cpf is growing the fastest.......why does everything have to be broken down into a boring scientific formula?


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Old April 23, 2001, 18:26   #4
airdrik
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quote:

Originally posted by drake on 04-23-2001 02:39 PM
O...why does everything have to be broken down into a boring scientific formula?




because we're bored!!! That's why. We have nothing else to do until civ 3 comes out, so why not analyse every aspect of civ 2 so we understand most everything about civ 3 before it comes out.
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Old April 23, 2001, 19:11   #5
EOL
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2 + (4*food surplus)/(city size + 1)

I think you'll find.

EOL

Edit: That's rounded down to the next 0.1
[This message has been edited by EOL (edited April 23, 2001).]
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Old April 23, 2001, 22:42   #6
William Keenan
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I can confirm EOL's findings.
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Old April 24, 2001, 00:53   #7
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First question: Were these numbers for a one-city civ?

What IS clear about this jumble of numbers is that children per family (i'll call it cpf) = 2 is steady state, a.k.a. no population growth - 2 children replace the 2 parents. If this was what the designers used, we could suppose that cpf = 4 means the population doubles, cpf = 6 triples, and so on, in a certain period of time (turns? until the next pop. change?). These numbers are clearly rounded off to the nearest tenth.

The cases in which the surplus equals the food eaten graph a classic hyperbola (or is that a parabola? I can't remember any more...). A classic curve, in either case.

It must not necessarily have a +2 at the end, altho that is a likely possibility. The steady state 2 could be part of a numerator...

If rules.txt states that each citizen eats 2 bushels per turn, how can you explain the cases in which city size is not half of food eaten?

Testing should include an array of cities with eaten = surplus, to more accurately calculate the curve, size 1 cities with various surpluses, and some random larger cities/surpluses to sample. Any takers? Or have I volunteered by responding?

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Old April 24, 2001, 09:59   #8
drake
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quote:

because we're bored!!! That's why. We have nothing else to do until civ 3 comes out, so why not analyse every aspect of civ 2 so we understand most everything about civ 3 before it comes out.


Um, well you could actually play the game Airdrik, wouldnt that cure your boredom??

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Old April 26, 2001, 00:26   #9
airdrik
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I am not one of these people who do the analysing, I just play. I haven't played civ 2 enough to get to the point where all I do is analyse. Though I think I will take your suggestion and play some more .
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Old April 26, 2001, 17:15   #10
Ecthy
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quote:

Originally posted by EOL on 04-23-2001 07:11 PM
2 + (4*food surplus)/(city size + 1)

I think you'll find.

EOL

Edit: That's rounded down to the next 0.1



OK, nice work, but what about a civ with several cities? do you add the city sizes then?
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Old April 26, 2001, 18:47   #11
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quote:

Originally posted by Ecthelion on 04-26-2001 05:15 PM
OK, nice work, but what about a civ with several cities? do you add the city sizes then?


My guess would probably you sum up each cities' size times it's family size and divide by the total of all cities' sizes and that is the number.
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Old April 27, 2001, 06:57   #12
EOL
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For more than one city

City size becomes the sum of all the city sizes = total no. of citizens
Food surplus becomes the net surplus across your empire.

EOL
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Old April 27, 2001, 07:03   #13
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Perhaps bizarrely, I think that food which goes towards supporting settlers and engineers also contributes to the food surplus for this calculation.

EOL
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