Numista Rarity Index (?)

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Peter M. Graham
Joined: 1 Tem 2015
Posts: 1228
Posted: 26 Ocak 2016, 21:57 #
Posted: #
I've always wondered how this # is calculated.

I recently added my 1st coin to the catalog and it lists the Rarity Index as 97. I'm pretty certain I have the only one on Numista.

https://en.numista.com/catalogue/pieces81123.html

Can anyone shed some light on this calculation?

Kind Regards, Peter
It ain't what you don't know that gets you into trouble.  It's what you know for sure, that just ain't so.  Mark Twain
dptashny
Closed account
Posted: 26 Ocak 2016, 21:58 #
Posted: #
Dear Leader prefers to keep the formula a secret.
neilithic
Closed account
Posted: 26 Ocak 2016, 22:07 #
Posted: #
It seems to be nobody has it, rarity 100, one member has it, rarity 97, 2 members, rarity 95, I'm not sure about how it goes from there.
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 26 Ocak 2016, 22:40 #
Posted: #
I don't know exactly how it does calculate but for sure it seems to be decreasing slower with more and more owners.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
Carlos55
Joined: 22 Ekim 2014
Posts: 304
Posted: 28 Ocak 2016, 02:30 #
Posted: #
Does anyone know of any coins that have a rarity index of 0, which means that everyone has one?
Trade only within the US.
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 28 Ocak 2016, 07:24 #
Posted: #
No. The lowest known one seems to be 3.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
Carlos55
Joined: 22 Ekim 2014
Posts: 304
Posted: 28 Ocak 2016, 16:17 #
Posted: #
Quote: "chomp-master"​No. The lowest known one seems to be 3.
​Which coins is it?
Trade only within the US.
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 28 Ocak 2016, 17:02 #
Posted: #
https://en.numista.com/catalogue/pieces6.html
French website, French coin :P

PS: 27 cons only myself, mixing minting years
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
smoked_caramel
Joined: 3 Tem 2012
Posts: 1640
Posted: 28 Ocak 2016, 17:33 #
Posted: #
I wish there was an easy way of querying this. :°
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 28 Ocak 2016, 18:07 #
Posted: #
Oops I wanted to say coins instead
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
redsmithstudios
Joined: 20 Ara 2010
Posts: 3064
Posted: 29 Ocak 2016, 02:47 #
Posted: #
Quote: "chomp-master"​Oops I wanted to say coins instead
​you know you can go back and edit it right?
Taking a break from swapping for a while, but still interested in pre 1799 Spanish coins, I will make time for that!

Looking for pre 1783 coins
redsmithstudios
Joined: 20 Ara 2010
Posts: 3064
Posted: 29 Ocak 2016, 02:49 #
Posted: #
Quote: "chomp-master"​https://en.numista.com/catalogue/pieces6.html
​French website, French coin :P
​
​PS: 27 cons only myself, mixing minting years
​we could send extras to every member that doesn't have one and see if we can get it to 0, just kidding.
Taking a break from swapping for a while, but still interested in pre 1799 Spanish coins, I will make time for that!

Looking for pre 1783 coins
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 29 Ocak 2016, 08:41 #
Posted: #
Quote: "redsmithstudios"​
Quote: "chomp-master"​Oops I wanted to say coins instead
​​you know you can go back and edit it right?
​I know, but that's not important for now ;)
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
eug
Joined: 27 Mart 2015
Posts: 245
Posted: 29 Ocak 2016, 18:28 #
Posted: #
I'm one of the few that doesn't have his coin. Maybe we should start a club for those who don't have this coin. I could be in the 300 club and the 3 club ;)
Eerovisser
Joined: 12 Eyl 2014
Posts: 394
Posted: 29 Ocak 2016, 21:45 #
Posted: #
Quote: "eug"​I'm one of the few that doesn't have his coin. Maybe we should start a club for those who don't have this coin. I could be in the 300 club and the 3 club ;)
​I have 15 doubles of this coin ?
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 29 Ocak 2016, 21:46 #
Posted: #
And me a few ones as well.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
ngdawa
Joined: 18 Ekim 2011
Posts: 6110
Posted: 30 Ocak 2016, 00:22 #
Posted: #
This one has a 3 as well.
chomp-master
Joined: 10 Mart 2015
Posts: 5744
Posted: 30 Ocak 2016, 00:49 #
Posted: #
All coins from 5 centimes to 1 franc (New franc, last series) has moved to NRI = 3
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
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