Currently we have the numista rarity index as well as the percentages next to each date to somewhat show how rare the item is among numista members, however I think it would be much better to just simply see how many of an item in total and how many of each date members of numista have logged to their collections. Obviously this shouldnt show what members specifically have logged the items, that would be a massive privacy issue but a total number would be nice to see, especially for the more rare stuff. I feel like this could either replace the percentages and the numista rarity index, be implemented alongside them or maybe this could just be a toggle in the settings to select what kind of statistic you want to see. I assume all the data is already there as that is what the numista rarity index and the percentages are calculated from so as far as I understand this wouldnt be difficult to implement. I hope you consider my suggestion, I think this would be a small but welcome change to improve the website and make it more interesting to browse and use.
I dread the comments “only owned by 6 people according to numista !!! ULTRA REAR !!! SPECIAL !!! Selling for 200.000U$D”
At least the NRI and the percentages are more difficult to explain outside the Numista users community. Plus, what do you show? Amount of collectors owning it, in collection or also swaplist. Or rather total number of items registered. And of course don't forget the wonderfully members claiming to own every yearline …
I vote to leave it as is, NRI and percentages are not perfect but give an indication of availability/collectability without giving out exact number.
Just call me Bram
No new swaps for the moment, still too many half-ongoing swaps to clean up!
I dread the comments “only owned by 6 people according to numista !!! ULTRA REAR !!! SPECIAL !!! Selling for 200.000U$D”
At least the NRI and the percentages are more difficult to explain outside the Numista users community. Plus, what do you show? Amount of collectors owning it, in collection or also swaplist. Or rather total number of items registered. And of course don't forget the wonderfully members claiming to own every yearline …
I vote to leave it as is, NRI and percentages are not perfect but give an indication of availability/collectability without giving out exact number.
This is why I suggest it might be an option in the settings and the default can stay as the NRI system. That way people who are most likely to misinterpret it (who are less experienced) would most likely not know about it at all and people who like the specific statistics can enjoy the feature. As for what to show, I think it should be the same number that NRI is calculated from whatever that is, im not sure. Im not saying that the NRI should be replaced, instead, this should be an alternative to it. There is definitely also people who would prefer NRI over what im suggesting, I understand that.
There are plots of NRI vs. # members. With that and the % for each line you can determine the # members on each year line. For instance NRI = 20 means 400 members, NRI = 10 means 1200 members.
You can not put specific number on NRI, there is a range because also coins available for swap are calculated into it which leads to wonky values.
Displaying absolute numbers are often of little value and relatives like ratios do a better job at displaying stuff from murky data sets. Also logged quantities of items is a relatively useless metric as we have a plethora of trolls with thousands or even millions of the same coins logged (but also some traders or hoarders have logged their legit inventory here so you can't simply filter out larger quantities if you care about any kind of accuracy).
This graph is a relatively good approximation but was constructed with a limited data set from Japanese coins that only had a single yearline to compensate for some to me unknown factors. The wobbles in the extrapolation are probably caused among other things by the ‘available for swap’ factor that I could not account for.
You can not put specific number on NRI, there is a range because also coins available for swap are calculated into it which leads to wonky values.
Displaying absolute numbers are often of little value and relatives like ratios do a better job at displaying stuff from murky data sets. Also logged quantities of items is a relatively useless metric as we have a plethora of trolls with thousands or even millions of the same coins logged (but also some traders or hoarders have logged their legit inventory here so you can't simply filter out larger quantities if you care about any kind of accuracy).
I mean NRI isn't perfect either, it also suffers from the same issue of trolls with millions of the same item logged so I dont see how simply showing the number would be any worse, for the items that trolls have logged millions of both statistics are useless either way, no matter if it's NRI or a specific number. I feel like if what im suggesting is added it should probably count items available for swap too as most of the time that is still an item physically in someone's collection, they are just willing to swap it. And I will once again say that this should absolutely not replace NRI, it should be another option available for displaying the data. There is definitely also people who would prefer NRI over what i'm suggesting and I understand that.
I think this is a good suggestion, but probably make it only available when log in.
Also, this feature probably should be optional, allowing members to change in setting, whether to show information or not.
Yes, I agree with this. It should be a setting with the default staying the current system. Also yeah, it only being available for people who are logged in makes sense
As far as I know, the referees already have this information, but it is not available to everyone.
Not sure the reason btw.
Oh, that is interesting… so it would probably be almost 0 work to implement it since it's already a feature, just one that's not publicly available. I wonder why it's not a public feature…
This graph is a relatively good approximation but was constructed with a limited data set from Japanese coins that only had a single yearline to compensate for some to me unknown factors. The wobbles in the extrapolation are probably caused among other things by the ‘available for swap’ factor that I could not account for.
It's may be true that for a given NRI and a given year line % the exact number of members may be different for different coins but they will probably be very close.
This graph is a relatively good approximation but was constructed with a limited data set from Japanese coins that only had a single yearline to compensate for some to me unknown factors. The wobbles in the extrapolation are probably caused among other things by the ‘available for swap’ factor that I could not account for.
I dont know how to make one of those graphs but this is what i noticed looking at wallachian, moldovan and albanian coins/banknotes
Ok, seems like this post has basically run its course now, so I will leave a final comment. I really expected more people to agree with me that this would be a nice feature to have, but I guess not since the post has been downvoted quite a bit… I honestly don't understand that because it would ideally be simply a toggle in the settings to see specific numbers or to see the NRI, so for the people who don't want to see exact numbers, everything would stay the same, and for the people who do, the option would be there. It's not something that would take away from what we currently have in any way, so I don't see why anyone would be actively against this being implemented. I guess the argument could be made that it's not worth investing the work to implement this, but as some other people have mentioned, it seems that this is already a feature for referees, so to me it looks like the work to make the feature publicly accessible would be minimal.
Anyway, I hope somebody sees this post at some point in the future and reconsiders adding this. As I said before, it would not take away from the people who like the system as it is now and would improve the site for the people like me who find the NRI a bit confusing/useless and would rather see a specific number.
Funny someone to downvote this, like “I do not want to know if a coin of my collection was moved and now I am lost".
I am curious about the reason.
This morning my issuer counting changef to 1002 to 1003 without adding any coin.
Guess what, I will never know what happened.
I think you posted on the wrong post … or did not read the OP's question. It's about being able to how many members own a specific piece or how many pieces are logged for a specific year.
Just call me Bram
No new swaps for the moment, still too many half-ongoing swaps to clean up!
Ok, seems like this post has basically run its course now, so I will leave a final comment. I really expected more people to agree with me that this would be a nice feature to have, but I guess not since the post has been downvoted quite a bit… I honestly don't understand that because it would ideally be simply a toggle in the settings to see specific numbers or to see the NRI, so for the people who don't want to see exact numbers, everything would stay the same, and for the people who do, the option would be there. It's not something that would take away from what we currently have in any way, so I don't see why anyone would be actively against this being implemented. I guess the argument could be made that it's not worth investing the work to implement this, but as some other people have mentioned, it seems that this is already a feature for referees, so to me it looks like the work to make the feature publicly accessible would be minimal.
Anyway, I hope somebody sees this post at some point in the future and reconsiders adding this. As I said before, it would not take away from the people who like the system as it is now and would improve the site for the people like me who find the NRI a bit confusing/useless and would rather see a specific number.
I guess it's pretty easy to implement, much easier than calculating the NRI and the percentages, so that's not the issue.
BUT! The data if openly visible to anyone will be grossly misused and prone to even more manipulation than what is already happening today. I don't know why others downvoted the idea, but I don't think there is a necessity for public availability and why I'm actively against this being implemented.
Your reasons to show the exact numbers:
“much better” … why?
“would be nice to see” … really?
“especially for the more rare stuff” … how would you know the inserted data is correct? especially for the rare stuff
“make it more interesting to browse and use” … how?
And by the way
BigKnoopI dont see how simply showing the number would be any worse, for the items that trolls have logged millions of both statistics are useless either way, no matter if it's NRI or a specific number
Well, Xavier's 🔐top secret🔐 recipe for NRI might have some deterrent included to smooth out this kind of troll-data, which you can't if you show pure numbers.
Just call me Bram
No new swaps for the moment, still too many half-ongoing swaps to clean up!
I guess it's pretty easy to implement, much easier than calculating the NRI and the percentages, so that's not the issue.
BUT! The data if openly visible to anyone will be grossly misused and prone to even more manipulation than what is already happening today. I don't know why others downvoted the idea, but I don't think there is a necessity for public availability and why I'm actively against this being implemented.
Your reasons to show the exact numbers:
“much better” … why?
“would be nice to see” … really?
“especially for the more rare stuff” … how would you know the inserted data is correct? especially for the rare stuff
“make it more interesting to browse and use” … how?
And by the way
Well, Xavier's 🔐top secret🔐 recipe for NRI might have some deterrent included to smooth out this kind of troll-data, which you can't if you show pure numbers.
Yeah you have a fair point with the NRI maybe having some kind of feature to smooth out troll data, although we cant know for sure if that is the case. As for how exactly if would be better basically boils down to the fact that some people, including me like seeing specific statistics like that, as for the practical use I don't think it would be too much better or worse, basically it would be the same. As for people misusing the data I have to say I disagree. While some people would obviously misuse it I dont think it would be a big enough issue to really worry about at all, especially if the feature to see specific numbers is a toggle somewhere in the settings, available for only people who are logged in and the default would stay as the NRI system. Like that I think most people who arent specifically looking for a feature like that, especially beginners who would be most likely to misuse it wouldn't even know the feature is there.
Yearlines tend to be changed or added new ones or new types, without users knowing, no messaging system is in place for this. I have recently started to restrucrure my swap tokens and almost every day I see new types been added I don't know when or similar. These changes while collectors don't actually find out about them by them selves, would also affect this data. And now someone please tell me how to check my “couple” of 10 kilo big collection for these changes. Therefor such details would make this info highly unreliant.
Yearlines tend to be changed or added new ones or new types, without users knowing, no messaging system is in place for this. I have recently started to restrucrure my swap tokens and almost every day I see new types been added I don't know when or similar. These changes while collectors don't actually find out about them by them selves, would also affect this data. And know someone please tell me how to check my “couple” of 10 kilo big collection for these changes. Therefor such details would make this info highly unreliant.
LP
This is a whole other issue entirely, like there should definitely be a place to see recent changes like that which affect your collection. Pretty big issue for me too with my almost 200kg collection and more than 20k items… but yeah, fair point.
