Comparing actual VGC data to what was projected for November

[TheSource]

Weeks ago, I posted a two part article predicting hardware sales for each market for the week ending Nov 4, Nov 11, Nov 18, Nov 25, Dec 2, Dec 9, Dec 16, Dec 23, and Dec 30 (through the rest of 2007).

Today, I dug up the data that went into the article, and compared it to the actual posted data for each region, by platform. 

Here is how I did for the first half (the first four out of nine weeks):

VGC	Predicted Totals for wk ending 11/4 to 11/25	Actual Totals for wk ending 11/4 to 11/25
	Japan	Americas	Others	Total	Japan	Americas	Others	Total
Wii	353,000	895,000	465,000	1,713,000	157,742	979,387	477,722	1,614,851
Xbox 360	17,000	670,000	161,000	848,000	36,760	749,716	224,281	1,010,757
PS3	50,000	275,000	285,000	610,000	177,354	403,831	346,987	928,172
DS	345,000	875,000	690,000	1,910,000	365,461	1,257,496	1,228,503	2,851,460
PSP	270,000	440,000	245,000	955,000	274,801	450,763	282,085	1,007,649
PS2	65,000	350,000	310,000	725,000	43,028	441,736	418,457	903,221
	Projected	Actual	Proj/Act
Wii	1,713,000	1,614,851	1.06
Xbox 360	848,000	1,010,757	0.84
PS3	610,000	928,172	0.66
DS	1,910,000	2,851,460	0.67
PSP	955,000	1,007,649	0.95
PS2	725,000	903,221	0.80

While I didn't break down how I did regionally, you can, since the data is above.  Worldwide, the totals predicted had a .83 correlation with VGC data.  Obviously, it varies quite a bit by platform, and I was particularly bad with predicting sales in Japan in November (Super Mario Galaxy, the PS3 price drop + DW6, the 360 Ace Combat boost), but if you take the .83 as projections compared to overall industry sales, it isn't too bad.

In another 5 weeks I'll update this for December and the entire Nov-Dec period to see how I did overall.