# Package org.apache.sysds.runtime.compress.estim

Interface Summary
ComEstFactory

Class Summary
AComEst: Main abstract class for estimating size of compressions on columns.
ComEstCompressed
ComEstExact: Exact compressed size estimator (examines entire dataset).
ComEstSample: Estimate compression size based on subsample of data.
CompressedSizeInfo: A helper reusable object for maintaining information about estimated compression
CompressedSizeInfoColGroup: Information collected about a specific ColGroup's compression size.
EstimationFactors: Compressed Size Estimation factors.