More matrix algebra: Manipulating matrices
This matrix is said to be “2 by 3” because it comprises two rows and three columns (i.e., 2 × 3). Each of the elements in this matrix, gy, has two subscripts. The first subscript refers to the row of the matrix in which an element appears and the second subscript refers to the column of the matrix in which it appears. For example, the element g23 is in the second row and third column of this matrix.
KeywordsMultiple Regression Model Matrix Algebra Simple Regression Model Basic Familiarity
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