Module matrix 

Expression matrix structures and builders

This module provides functionality for assembling expression matrices from NCBI GEO SOFT format data. It handles:

• Joining sample data tables on probe IDs
• Mapping probe IDs to gene symbols via platform annotation
• Aggregating multiple probes per gene (mean by default)
• Converting to Arrow RecordBatch for efficient processing

Structs

ExpressionMatrix

Expression matrix with genes as rows and samples as columns

MatrixBuilder

Builder for creating expression matrices from SOFT data

MatrixConfig

Configuration for matrix building

PlatformAnnotation

Platform annotation as Arrow RecordBatch

SampleMetadata

Sample metadata as Arrow RecordBatch

Enums

AggregationMethod

Aggregation method for multiple probes per gene

Type Aliases

GeneValues

Type alias for gene expression values: vector of per-sample values