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Oct
1
comment Decision boundaries from coefficients of linear discriminants?
But the function returns a scalar value corresponding to the separation distance rather than a multi-dimensional boundary? Unless I am mistaken. Right, I plan to draw projections where two other dimensions are fixed (or resort to contour lines).
Sep
30
comment How can you relate the coefficients of a multivariate regression of ${\bf Y} \sim {\bf X}$ to the coefficients of ${\bf X} \sim {\bf Y}$?
"This relationship does not extend to higher dimensions" is what I was looking for; the dimensions of the matrices would be the same if transposed but actually it is a little more clear that they should not be related as simply as in the scalar case.
Sep
29
asked Decision boundaries from coefficients of linear discriminants?
Jul
1
asked How can you relate the coefficients of a multivariate regression of ${\bf Y} \sim {\bf X}$ to the coefficients of ${\bf X} \sim {\bf Y}$?
Dec
2
comment Comparing original variables with characteristic values of diagonalized variance-covariance matrix
Thanks so much - I spoke with the author and it turns out that the new observations should also be projected onto the new basis set for comparison.
Nov
28
comment Comparing original variables with characteristic values of diagonalized variance-covariance matrix
@whuber, thank you for this response. I am not sure if the author would like his manuscript scrutinized on a public forum, but I will try to contact him directly. But thank you for your feedback, I thought something was amiss and I may have misinterpreted this portion of the manuscript.
Nov
27
awarded  Student
Nov
27
awarded  Editor
Nov
27
revised Comparing original variables with characteristic values of diagonalized variance-covariance matrix
specified that it is to "compare each new set of measurements"
Nov
27
asked Comparing original variables with characteristic values of diagonalized variance-covariance matrix
Nov
27
awarded  Supporter