of a quit to indicate the end of PROCIMLis a good habit, analogous to the use of run
to indicate the end of a procedure or DATA step.
There are manyspecial types of matrices.For example, a square matrixhas the same
number of rows and columns. A diagonal matrix is a square matrix withall diagonal
elements equal to nonzero, and all off-diagonal elements equal to 0. The identity matrix
I3is an example of a square, diagonal matrix. The SAS/IML function DIAG can be used
to construct a diagonal matrix from a vector. The SAS/IML function VECDIAG can be
used to extract the diagonal elements from a matrix in ...
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