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optmatch (version 0.9-17)

sort.InfinitySparseMatrix: Sort the internal structure of an InfinitySparseMatrix.

Description

Internally, an InfinitySparseMatrix (Blocked or non) comprises of vectors of values, row positions, and column positions. The ordering of these vectors is not enforced. This function sorts the internal structure, leaving the external structure unchanged (e.g. `as.matrix(ism)` and `as.matrix(sort(ism))` will look identical despite sorting.)

Usage

# S3 method for InfinitySparseMatrix
sort(x, decreasing = FALSE, ..., byCol = FALSE)

# S3 method for BlockedInfinitySparseMatrix sort(x, decreasing = FALSE, ..., byCol = FALSE)

Arguments

x

An InfinitySparseMatrix or BlockedInfinitySparseMatrix.

decreasing

Logical. Should the sort be increasing or decreasing?

...

Additional arguments ignored.

byCol

Logical. Defaults to FALSE, so the returned ISM is row-dominant. TRUE returns a column-dominant ISM.

Value

An object of the same class as `x` which is sorted according to `byCol`.

Details

By default, the InfinitySparseMatrix is row-dominant, meaning the row positions are sorted first, then column positions are sorted within each row. Use argument `byCol` to change this.