Editing Least squares (section)

==Relationship to measure theory==
Notable statistician [[Sara van de Geer]] used [[empirical process theory]] and the [[Vapnik–Chervonenkis dimension]] to prove a least-squares estimator can be interpreted as a [[Measure (mathematics)|measure]] on the space of [[square-integrable functions]].<ref name=bigcrush>{{cite journal|author-last=van de Geer|author-first=Sara|author-link=Sara van de Geer|title=A New Approach to Least-Squares Estimation, with Applications | journal=[[Annals of Statistics]]| volume=15 | issue=2 | pages=587–602 | date=June 1987 |doi=10.1214/aos/1176350362|s2cid=123088844 |doi-access=free}}</ref>