Generic function to read a set of column vector from an input source (e.g. ColumnReader)

Description

Generic function to read a set of column vector from an input source (e.g. ColumnReader)

Usage

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readColumns(x, columnIndices)

## S4 method for signature 'ColumnReader,numeric'
readColumns(x, columnIndices)

Arguments

x

the input channel

columnIndices

the column indices

Value

a matrix consisting of the requested column vectors

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