Sparse Tools

Browse all available sparse tools.

Available tools

Sparse Column Pointer Layout Validator Validate CSC pointer arity, monotonicity, final entry count and minor bounds; duplicates/unsorted minor indexes remain legal observations.
Sparse Column Pointer Triplet Expander Expand validated CSC compressed pointer arrays to occurrence-preserving COO records with explicit dimensions; duplicate entries and zeros remain.
Sparse Coordinate Axis Offset Translate bounded COO coordinates into explicitly supplied target dimensions; out-of-target entries are rejected rather than clipped.
Sparse Coordinate Column Counts Count COO entry occurrences per column, including duplicate coordinates and explicit zero values; not dense nonzero support.
Sparse Coordinate Diagonal Selector Select observed COO diagonal coordinate occurrences, preserving duplicates and zero values in rectangular matrices.
Sparse Coordinate Duplicate Combiner Combine duplicate COO coordinate occurrences by addition in first-coordinate appearance order, retaining explicit summed zeros; no sparsity pruning.
Sparse Coordinate Pattern Symmetry Check Audit observed coordinate-pattern symmetry of square COO data; duplicate values and explicit zeros affect observations, not presence.
Sparse Coordinate Row Counts Count COO entry occurrences per row, including duplicate coordinates and explicit zero values; not dense nonzero support.
Sparse Coordinate Row Pointer Builder Build stable CSR row pointers and aligned column/value/source-index arrays from COO observations; no duplicate combination or per-row column sorting.
Sparse Coordinate Triangle Selector Select explicit upper or lower COO triangular coordinate observations with a caller diagonal policy; no implied symmetric values.
Sparse Coordinate Triplet Crop Crop a COO matrix to a half-open coordinate rectangle and rebase retained entries, preserving duplicates and explicit zero observations.
Sparse Coordinate Triplet Stable Sort Stable row-major COO coordinate ordering with original index provenance; duplicate coordinates and explicit zeros remain observations.
Sparse Coordinate Triplet Transpose Transpose COO coordinate records and swap matrix dimensions without sorting, combining duplicates or dropping explicit zeros.
Sparse Coordinate Triplet Validator Validate bounded finite COO sparse triplets and report duplicates without silently combining or rejecting them; no dense matrix allocation.
Sparse Coordinate Value Symmetry Check Audit summed exact-value symmetry of square COO data; duplicates are summed first, exact zero entries still participate.
Sparse Coordinate Zero Pruner Prune exactly zero-valued COO occurrences with removal provenance; no tolerance and no pre-combination, so canceling duplicates are retained.
Sparse Dense Cell Budget Budget exact dense storage for explicit sparse matrix dimensions and bytes per cell without materializing a matrix; excludes allocator overhead.
Sparse Diagonal Coverage Check Audit COO diagonal observation coverage separately from explicitly observed zero diagonal values; no assumption of implicit zeros as supplied evidence.
Sparse Row Pointer Layout Validator Validate CSR pointer arity, monotonicity, final entry count and minor bounds; duplicates/unsorted minor indexes remain legal observations.
Sparse Row Pointer Triplet Expander Expand validated CSR compressed pointer arrays to occurrence-preserving COO records with explicit dimensions; duplicate entries and zeros remain.