I am looking at the aov function in R. I see that it uses a modified QR
factorization routine dqrdc2 based on the Linpack routine dqrdc. Pivoting is
done different than the original Linpack function.
My questions:
* Why is it necessary to modify the pivoting strategy? Something necessary
for aov?
* Will the LAPACK function dgeqp3 work well or would the pivoting have o be
modified?
Thank you
MRC
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