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detrending

applies a Detrend correction by orthogonal projection to a Vandermonde matrix

Calling sequence

xd = detrending(x,(order));

Arguments

x:

a matrix (n x q) or a Div structure

(order):

the order of the polynom; default value=2

xd:

a Div structure corresponding to x after the Detrend correction; xd.d is of dimensions (n x q)

Examples

[x2]=detrending(x1,3)

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