By using this site, you agree to our Privacy Policy and our Terms of Use. Close

Forums - Sales - What is up with USA Numbers?

Then who updates them?



Around the Network

ioi is being paid off by microsoft


....... oh wait......

This same issue has been discussed hundreds of times on this site but fanboys wont let it die.

PS3 and 360 are selling very similarly right now. Given at least 10% margin of error in both services that means they are reporting a statistical tie between the two. Sony defense force people wont let it go because they are unsatisfied simply knowing the PS3 is do much better than last year and outselling 360 worldwide.

And no matter how many times people like to cry about NPD having more sources it doesn't necessarily make them more accurate. VGchartz was burned last quarter by adjusting for NPD when the manufacturers numbers came in and proves they were initially closer. NPD is not open about the process, we get very few numbers, numbers are infrequent, and we don't get corrections.

Also neither source has Walmart which is a huge percentage of the market, and only they really know for sure what the PS3 and 360 situation is like in their stores this year.

So anyone with a 6th grade education in math knows it is pointless to argue about PS3 vs 360 in USA until manufacturers numbers come in. Even then it will probably be a tie for first quarter because we wont know sellthrough.



Final* Word on Game Delays:

The game will not be any better or include more content then planned. Any commnets that say so are just PR hogwash to make you feel better for having to wait.

Delays are due to lack of proper resources, skill, or adequate planning by the developer.

Do be thankful that they have enough respect for you to delay the game and maintain its intended level of quality.

*naznatips is exempt

dschumm said:
ioi is being paid off by microsoft


....... oh wait......

This same issue has been discussed hundreds of times on this site but fanboys wont let it die.

PS3 and 360 are selling very similarly right now. Given at least 10% margin of error in both services that means they are reporting a statistical tie between the two. Sony defense force people wont let it go because they are unsatisfied simply knowing the PS3 is do much better than last year and outselling 360 worldwide.

And no matter how many times people like to cry about NPD having more sources it doesn't necessarily make them more accurate. VGchartz was burned last quarter by adjusting for NPD when the manufacturers numbers came in and proves they were initially closer. NPD is not open about the process, we get very few numbers, numbers are infrequent, and we don't get corrections.

Also neither source has Walmart which is a huge percentage of the market, and only they really know for sure what the PS3 and 360 situation is like in their stores this year.

So anyone with a 6th grade education in math knows it is pointless to argue about PS3 vs 360 in USA until manufacturers numbers come in. Even then it will probably be a tie for first quarter because we wont know sellthrough.

Not saying I dont agree with you, but if NPD has more sources and much higher accuracy than vgchartz, how does it not make them more accurate?



 

mM

ioi and the rest have looked at the same numbers you have and many more besides; they have come to different conclusions than you. And NPD is not always more accurate.

Maybe the difference is merely that VGCharts corrects numbers while NPD does not (publicly). (Or at least that is my understanding.) If they both overtracked PS3 and then realized it after the fact then only VGChartz would show a difference.



Tag (courtesy of fkusumot): "Please feel free -- nay, I encourage you -- to offer rebuttal."
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
My advice to fanboys: Brag about stuff that's true, not about stuff that's false. Predict stuff that's likely, not stuff that's unlikely. You will be happier, and we will be happier.

"Everyone is entitled to his own opinion, but not his own facts." - Sen. Pat Moynihan
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The old smileys: ; - ) : - ) : - ( : - P : - D : - # ( c ) ( k ) ( y ) If anyone knows the shortcut for , let me know!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
I have the most epic death scene ever in VGChartz Mafia.  Thanks WordsofWisdom! 

>PS3 and 360 are selling very similarly right now. Given at least 10% margin of error in both services that means they are reporting a statistical tie between the two. Sony defense force people wont let it go because they are unsatisfied simply knowing the PS3 is do much better than last year and outselling 360 worldwide.

I get the 10% margin, I get that they are selling close.

But explain to me how you can favour 360 for 2 months (or 8 weeks) in a row. If it's just 'margin error', shouldn't we expect VGC favouring PS3 certain times just base on the rule of probability?



Soriku (Feb 10/08): In 5 years the PS3/360 will be dead.

KH3 bet: "If KH3 comes to Wii exclusive, I will take a 1 month of sig/avatar by otheres open a thread apologize and praise you guys' brilliance." http://vgchartz.com/forum/thread.php?start=50&id=18379
Original cast: Badonkadonkhr, sc94597 allaboutthegames885, kingofwale, Soriku, ctk495, skeezer, RDBRaptor, Mirson,

Episode 1: OOPSY!
selnor
: Too Human I even expect 3-4 mill entire life and 500,000 first day. GoW2 ( expect 7 - 9 million entire life and over 2 mill first day), Fable 2 (expect 5-6 million entire life and 1.5 mill fist day) BK3 (expect 4 - 5 mill sales entire life and 1 mill first day).. Tales/IU/TLR should get to 2 or 3 million! post id: 868878
Episode 2:
Letsdance: FFXIII (PS3+360) first week in NA = 286K
According to pre-order rate in week 13 (post id: 2902544)
Around the Network
leo-j said:
dschumm said:
And no matter how many times people like to cry about NPD having more sources it doesn't necessarily make them more accurate. VGchartz was burned last quarter by adjusting for NPD when the manufacturers numbers came in and proves they were initially closer. NPD is not open about the process, we get very few numbers, numbers are infrequent, and we don't get corrections.

Also neither source has Walmart which is a huge percentage of the market, and only they really know for sure what the PS3 and 360 situation is like in their stores this year.

So anyone with a 6th grade education in math knows it is pointless to argue about PS3 vs 360 in USA until manufacturers numbers come in. Even then it will probably be a tie for first quarter because we wont know sellthrough.
Not saying I dont agree with you, but if NPD has more sources and much higher accuracy than vgchartz, how does it not make them more accurate?
Well, if NPD was more accurate that would by definition make it more accurate.  But more sources =/= more accurate.  If they have more sources but crappy algorithms (or whatever) to extrapolate all the missing data, then they could have worse accuracy than a relatively small (but representative) sample with smart extrapolations. 

Tag (courtesy of fkusumot): "Please feel free -- nay, I encourage you -- to offer rebuttal."
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
My advice to fanboys: Brag about stuff that's true, not about stuff that's false. Predict stuff that's likely, not stuff that's unlikely. You will be happier, and we will be happier.

"Everyone is entitled to his own opinion, but not his own facts." - Sen. Pat Moynihan
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The old smileys: ; - ) : - ) : - ( : - P : - D : - # ( c ) ( k ) ( y ) If anyone knows the shortcut for , let me know!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
I have the most epic death scene ever in VGChartz Mafia.  Thanks WordsofWisdom! 

I love how people would rather accuse NPD, a leading global market research company who has been in business for over 40 years doing JUST that, for having "crappy algorithms in order to defend ioi's number.

no offense to ioi, we all love him and we know he put a lot of time and energy into his numbers. but COME ON!!



Soriku (Feb 10/08): In 5 years the PS3/360 will be dead.

KH3 bet: "If KH3 comes to Wii exclusive, I will take a 1 month of sig/avatar by otheres open a thread apologize and praise you guys' brilliance." http://vgchartz.com/forum/thread.php?start=50&id=18379
Original cast: Badonkadonkhr, sc94597 allaboutthegames885, kingofwale, Soriku, ctk495, skeezer, RDBRaptor, Mirson,

Episode 1: OOPSY!
selnor
: Too Human I even expect 3-4 mill entire life and 500,000 first day. GoW2 ( expect 7 - 9 million entire life and over 2 mill first day), Fable 2 (expect 5-6 million entire life and 1.5 mill fist day) BK3 (expect 4 - 5 mill sales entire life and 1 mill first day).. Tales/IU/TLR should get to 2 or 3 million! post id: 868878
Episode 2:
Letsdance: FFXIII (PS3+360) first week in NA = 286K
According to pre-order rate in week 13 (post id: 2902544)
kingofwale said:
>PS3 and 360 are selling very similarly right now. Given at least 10% margin of error in both services that means they are reporting a statistical tie between the two. Sony defense force people wont let it go because they are unsatisfied simply knowing the PS3 is do much better than last year and outselling 360 worldwide.

I get the 10% margin, I get that they are selling close.

But explain to me how you can favour 360 for 2 months (or 8 weeks) in a row. If it's just 'margin error', shouldn't we expect VGC favouring PS3 certain times just base on the rule of probability?

 No matter how many sources you have unless you have all of them, the thing that really matters is your formula.

 

Say for example ioi's formula is telling him the 360 is outselling the PS3 at Walmart and the NPD formula has it the other way around . They both just have historical data to go by. So with walmart being so huge it would be enough to swing it. If everything else stays about the same then the same disagreement would happen two months in a row. 

 

I am guessing that NPD adjusted their formula for Walmart based on the improved popularity of the PS3 this year. While I think ioi has either done it less or not at all. We will see who was right come March. 



Final* Word on Game Delays:

The game will not be any better or include more content then planned. Any commnets that say so are just PR hogwash to make you feel better for having to wait.

Delays are due to lack of proper resources, skill, or adequate planning by the developer.

Do be thankful that they have enough respect for you to delay the game and maintain its intended level of quality.

*naznatips is exempt

Seriously, just fix this mess.



kingofwale said:
>PS3 and 360 are selling very similarly right now. Given at least 10% margin of error in both services that means they are reporting a statistical tie between the two. Sony defense force people wont let it go because they are unsatisfied simply knowing the PS3 is do much better than last year and outselling 360 worldwide.

I get the 10% margin, I get that they are selling close.

But explain to me how you can favour 360 for 2 months (or 8 weeks) in a row. If it's just 'margin error', shouldn't we expect VGC favouring PS3 certain times just base on the rule of probability?
Well I'm no statistician but I don't think that the error in question is random.  That is, VGC gets its samples from the same people every time, so it seems to me that they are likely to have a similar customer base over time.  If all the retailers VGC doesn't track have an overall different customer base, they would sell different proportions.  And VGC accounts for those differences but its compensation is no doubt not perfect.  And they will also use the same methods consistently which is likely to result in a consistent bias. 

So there is a margin of error based on how closely VGC's sample represents the 100% and on how well VGC accounts for the places their sample deviates from the 100%.  And if I am right it is NOT just random deviation which as you say would go in any direction probabilistically without preference.

Tag (courtesy of fkusumot): "Please feel free -- nay, I encourage you -- to offer rebuttal."
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
My advice to fanboys: Brag about stuff that's true, not about stuff that's false. Predict stuff that's likely, not stuff that's unlikely. You will be happier, and we will be happier.

"Everyone is entitled to his own opinion, but not his own facts." - Sen. Pat Moynihan
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The old smileys: ; - ) : - ) : - ( : - P : - D : - # ( c ) ( k ) ( y ) If anyone knows the shortcut for , let me know!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
I have the most epic death scene ever in VGChartz Mafia.  Thanks WordsofWisdom!