32k is under tracked. No other way of looking at it. NPD's margin of error is way lower than VGC's.
PS4 is under tracked 2-300k after August. November 2013 - June 2014 are pretty much an accurate LTD for the PS4. The majority of that 23k would easily go to Infamous week.
VGC once had Xbox One win Titanfall week, but after adjusting March for no reason, ioi had PS4 beat the One.
They could just as easily undertrack the pre-launch week slump, and the 2nd week drop, in both cases. Yes NPD has a much lower MoE than VGC, but that doesn't mean NPD is the absolute stdnard and that any VGC discrepancy is wrong by that exact amount. You and I, and VGC and NPD have no idea what the true sales for any given week are, you no one knows if or by how much the tracking of any given week or month is out. Legitimate under(over)tracking is when the discrepancy for a given time period between a less accurate and more accurate tracking service is significantly outside the MoE and therefore one or other is patently wrong (usually the less accurate system). A 32K discrepancy between NPD and VGC for the month is not a significant enough gap to be regarded as an absolute undertrack necessitating adjustment.
The fact of the matter is there is no unequivocal evidence to show that TF week so undertracked that Xb one actually was the lead console for the week. So VGC is what it is and that's the objective information we go with. You can believe Xb one had higher sales that week, but that's all it is, a belief. My thread is based on objective information that isn't created from my own personal opinion. Everyone knows, and ioi has explained, that the number they post is a most likely number based on their raw data, but that may only have a 60% confidence, if any 2 consoles are within a few % then there is almost as much likelihood of the true positions being the opposite of what is published. But 60% confidence that A is ahead of B is better than 40% confidence of the opposite. And when you do statistics you go with the most likely outcome not the least likely, if you are going to attempt to draw some conclusions. However the people who prefer B to be ahead of A are always able to claim that there is a high chance of this being true, and that is a fair statement, but not a basis for drawing further conslusions or making assumptions.
Also, just because the USA's error for the week is likely to be on the under side does not mean the errors for all other markets are the same. VGC may have over-tracked in other markets which may even things out. So even accepting for argument's sake that the US number for TF week puts Xb one up on PS4 in the USA, it may be that if the rest of the world is over-tracked the overs and unders cancel each other out, and we end up with the same relative positions. Do we have evidence to support a global undertrack trend for Xb one? My understading is that MS's 5 million shipped announcement, plus whatever people have been able to conclude about LTD shipments up to the end of June suggests VGC worldwide tracking has been OK for Xb one.
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