trueFalseStructure

Method of CPNTensor.

Split a signed structure matrix into the True / False / Continuous components.

Source: src/tensor/@CPNTensor/CPNTensor.m

Syntax

obj = obj.trueFalseStructure(M)

Description

trueFalseStructure decomposes a single signed structure matrix M (rows = signals, columns = monomials) into the tensor’s three structure components and stores them sparsely:

• structureMatrixTrue $= (M == 1)$ — the entries equal to $1$, giving factor $v_l$;
• structureMatrixFalse — an all-zero logical matrix the size of M;
• structureMatrixContinuous $= M - \text{structureMatrixTrue}$ — every remaining entry, giving factor $1-\lvert s\rvert + s\,v_l$.

Because the False component is left empty, this route never produces complemented factors $1-v_l$; entries other than $1$ (including any $-1$) are kept as continuous weights. To supply a structureMatrixFalse, set the components directly through fromSparseComponents or the six-argument constructor.

This method backs the two-argument constructor and fromRawMatrices. It sets the structure components but does not itself refresh the rank; the constructor and factories update R afterwards.

Input arguments

Output arguments

See also

CPNTensor · trueFalseParameter · fromRawMatrices · fromSparseComponents

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