## Uses of Class
org.apache.sysds.runtime.compress.estim.CompressedSizeInfoColGroup

Packages that use CompressedSizeInfoColGroup
org.apache.sysds.runtime.compress.cost
org.apache.sysds.runtime.compress.estim

### Uses of CompressedSizeInfoColGroup in org.apache.sysds.runtime.compress.cost

Methods in org.apache.sysds.runtime.compress.cost with parameters of type CompressedSizeInfoColGroup
`double` ICostEstimate.`getCostOfColumnGroup(CompressedSizeInfoColGroup g)` If the instruction does not care about the inter column group cost, such as in memory cost or in computation cost of right or left matrix multiplication we simply estimate the cost of individual column groups.
`double` MemoryCostEstimator.`getCostOfColumnGroup(CompressedSizeInfoColGroup g)`
`double` ComputationCostEstimator.`getCostOfColumnGroup(CompressedSizeInfoColGroup g)`
`double` DistinctCostEstimator.`getCostOfColumnGroup(CompressedSizeInfoColGroup g)`
`double` HybridCostEstimator.`getCostOfColumnGroup(CompressedSizeInfoColGroup g)`
`double` ICostEstimate.`getUncompressedCost(CompressedSizeInfoColGroup g)` Calculate the cost of execution if uncompressed.
`double` MemoryCostEstimator.`getUncompressedCost(CompressedSizeInfoColGroup g)`
`double` ComputationCostEstimator.`getUncompressedCost(CompressedSizeInfoColGroup g)`
`double` DistinctCostEstimator.`getUncompressedCost(CompressedSizeInfoColGroup g)`
`double` HybridCostEstimator.`getUncompressedCost(CompressedSizeInfoColGroup g)`
`boolean` ICostEstimate.`shouldAnalyze(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)` Decide if the column groups should be analysed, or the worst case join should be expected.
`boolean` MemoryCostEstimator.`shouldAnalyze(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)`
`boolean` ComputationCostEstimator.`shouldAnalyze(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)`
`boolean` DistinctCostEstimator.`shouldAnalyze(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)`
`boolean` HybridCostEstimator.`shouldAnalyze(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)`

### Uses of CompressedSizeInfoColGroup in org.apache.sysds.runtime.compress.estim

Fields in org.apache.sysds.runtime.compress.estim with type parameters of type CompressedSizeInfoColGroup
`List<CompressedSizeInfoColGroup>` CompressedSizeInfo.`compressionInfo`

Methods in org.apache.sysds.runtime.compress.estim that return CompressedSizeInfoColGroup
`static CompressedSizeInfoColGroup` CompressedSizeInfoColGroup.`addConstGroup(int[] columns, CompressedSizeInfoColGroup oneSide, Set<AColGroup.CompressionType> validCompressionTypes)` This method adds a column group without having to analyze.
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateCompressedColGroupSize()` Method used for compressing into one type of colGroup
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateCompressedColGroupSize(int[] colIndexes)` Method for extracting Compressed Size Info of specified columns, together in a single ColGroup
`CompressedSizeInfoColGroup` CompressedSizeEstimatorExact.`estimateCompressedColGroupSize(int[] colIndexes, int estimate, int nrUniqueUpperBound)`
`CompressedSizeInfoColGroup` CompressedSizeEstimatorSample.`estimateCompressedColGroupSize(int[] colIndexes, int estimate, int nrUniqueUpperBound)`

`abstract CompressedSizeInfoColGroup`

CompressedSizeEstimator.`estimateCompressedColGroupSize(int[] colIndexes, int estimate, int nrUniqueUpperBound)`
A method to extract the Compressed Size Info for a given list of columns, This method further limits the estimated number of unique values, since in some cases the estimated number of uniques is estimated higher than the number estimated in sub groups of the given colIndexes.

`CompressedSizeInfoColGroup` CompressedSizeEstimatorUltraSparse.`estimateCompressedColGroupSize(int[] colIndexes, int estimate, int nrUniqueUpperBound)`
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateJoinCompressedSize(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)` Join two analyzed column groups together.
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateJoinCompressedSize(int[] joined, CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)` Join two analyzed column groups together.
`CompressedSizeInfoColGroup` CompressedSizeInfo.`getGroupInfo(int index)`

Methods in org.apache.sysds.runtime.compress.estim that return types with arguments of type CompressedSizeInfoColGroup
`List<CompressedSizeInfoColGroup>` CompressedSizeEstimator.`computeCompressedSizeInfos(Collection<int[]> columnLists)` Compression Size info from list of specified columns
`List<CompressedSizeInfoColGroup>` CompressedSizeEstimator.`computeCompressedSizeInfos(Collection<int[]> columnLists, int k)` Multi threaded version of extracting Compression Size info from list of specified columns
`List<CompressedSizeInfoColGroup>` CompressedSizeInfo.`getInfo()`

Methods in org.apache.sysds.runtime.compress.estim with parameters of type CompressedSizeInfoColGroup
`static CompressedSizeInfoColGroup` CompressedSizeInfoColGroup.`addConstGroup(int[] columns, CompressedSizeInfoColGroup oneSide, Set<AColGroup.CompressionType> validCompressionTypes)` This method adds a column group without having to analyze.
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateJoinCompressedSize(CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)` Join two analyzed column groups together.
`CompressedSizeInfoColGroup` CompressedSizeEstimator.`estimateJoinCompressedSize(int[] joined, CompressedSizeInfoColGroup g1, CompressedSizeInfoColGroup g2)` Join two analyzed column groups together.

Method parameters in org.apache.sysds.runtime.compress.estim with type arguments of type CompressedSizeInfoColGroup
`void` CompressedSizeInfo.`setInfo(List<CompressedSizeInfoColGroup> info)`

Constructor parameters in org.apache.sysds.runtime.compress.estim with type arguments of type CompressedSizeInfoColGroup
Constructor and Description
`CompressedSizeInfo(List<CompressedSizeInfoColGroup> compressionInfo)`