Regression Analysis Y = XB + e
Regression Analysis - Y = XB + e , Matrix Form
1) Vectors R(1) R(x) ( Green ) in plane with variables x(j) , B(j)
2) Blue Triangle with Indices Y(i) Hat ; Y (i) ; Y Bar
3) Green Circle Transformed Indices too " Plan " view.
4) Blown up view of the Green Circle
5) Dimensioned Detail of Green Circle ( Blue, Purple, Red ) Dimensions
I have pointed out as simple as possible the Relationship between Y hat , Y i , Y bar , & e i