Anchor_partial_atpiu??? in ranking factors

[PeterSEO]

Could anybody explain what does it mean

anchor_partial_atpiu

in ranking factors

http://www.seomoz.org/article/search-ranking-factors#metrics-1

[caseyhen]

Hi Peter,

It looks like that's an error in the graphic.  That term should be replaced with the following description:

The number of internal pages linking to domain with partial anchor text match

[PeterSEO]

THX Casey