Browsing by Subject "lack-of-fit testing"

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    The variagraph concept and a lack-of-fit test.
    (University of Minnesota, 1996-12) Robinson, Andrew P.; Weisberg, Sanford
    The variagraph is a graphical diagnostic technique for assessing lack of fit and estimating pure error without replication for regression modelling. The behavior of the variagraph is explored by simulation, and its use demonstrated on an example dataset previously applied in lack-of-fit testing.