tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ > Struct Template Reference

Details on the subset to extract in OracularSubsettedSlabCache. More...

#include <OracularSubsettedSlabCache.hpp>

Public Attributes
OracularSubsettedSlabCacheSelectionType	selection
Index_	block_start
Index_	block_length
Index_	block_end
std::vector< Index_ >	indices
std::unordered_map< Index_, Index_ >	mapping

Detailed Description

template<typename Index_>
struct tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >

Details on the subset to extract in OracularSubsettedSlabCache.

Template Parameters

Index_

Type of row/column index produced by the oracle.

Member Data Documentation

selection

template<typename Index_ >

OracularSubsettedSlabCacheSelectionType tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::selection

Type of subset to extract from the target dimension of the slab.

block_start

template<typename Index_ >

Index_ tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::block_start

Row/column index representing the start of the contiguous block of the target dimension to be extracted from the slab. Only used if selection is set to OracularSubsettedSlabCacheSelectionType::BLOCK.

Note that the index is relative to the start of the slab, not to the matrix containing the slab, i.e., if the slab consists of rows 10-20 and we want to extract row 11, this will be reported here as an index of 1.

block_length

template<typename Index_ >

Index_ tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::block_length

Length of the contiguous block of the target dimension to be extracted from the slab. Only used if selection is set to OracularSubsettedSlabCacheSelectionType::BLOCK.

block_end

template<typename Index_ >

Index_ tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::block_end

Row/column index representing one-past-the-end of the contiguous block of the target dimension to be extracted from the slab. Only used if selection is set to OracularSubsettedSlabCacheSelectionType::BLOCK. This is also equal to block_start + block_length.

indices

template<typename Index_ >

std::vector<Index_> tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::indices

Indices of the target dimension to be extracted from the slab. Guaranteed to be sorted and unique. Only used if selection is set to OracularSubsettedSlabCacheSelectionType::INDEX.

Note that all indices is relative to the start of the slab, not to the matrix containing the slab, i.e., if the slab consists of rows 10-20 and we want to extract row 11, this will be reported here as an index of 1.

mapping

template<typename Index_ >

std::unordered_map<Index_, Index_> tatami_chunked::OracularSubsettedSlabCacheSelectionDetails< Index_ >::mapping

Mapping of indices-to-be-extracted to their positions inside indices. All values of indices are present as keys here where mapping[indices[i]] = i. Only used if selection is set to OracularSubsettedSlabCacheSelectionType::INDEX.

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The documentation for this struct was generated from the following file:

• tatami_chunked/OracularSubsettedSlabCache.hpp