intf_convert: Convert a value to a numeric matrix or sparse matrix

In CVXR: Disciplined Convex Optimization

Convert a value to a numeric matrix or sparse matrix

Description

Normalizes R values so the rest of CVXR can assume a consistent type, as CVXPY's Constant() does through const_to_matrix (constant.py:51-54; numpy_interface/sparse_matrix_interface.py:40-51, ndarray_interface.py): every sparse input becomes a double CSC matrix, bool and int are cast to double, the shape is kept and explicit zeros are kept.

Usage

intf_convert(val)

Arguments

val	A logical, integer, double or complex scalar, vector or matrix, or a Matrix object

Details

Here any sparseMatrix or sparseVector becomes a general double dgCMatrix (symmetric, triangular, diagonal, triplet, row-compressed, pattern and logical classes included); a dense Matrix becomes a base matrix; a base logical, integer, double or complex value is stored as double (complex kept), a scalar or vector as a column.

Value

A base matrix or a dgCMatrix

CVXR documentation built on Oct. 19, 2026, 5:07 p.m.