R.filesets: indexOf.GenericDataFileSet – R documentation

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R.filesets

indexOf.GenericDataFileSet

Finds indices of a subset of files

Description

Finds indices of a subset of files whose names match a given set of names or name patterns.

Usage

## S3 method for class 'GenericDataFileSet'
indexOf(this, patterns=NULL, by=c("exact", "regexp", "fixed"), ...,
  onMissing=c("NA", "error"))

Arguments

`patterns`	A `character` `vector` of length K of names and/or regular expressions to be matched.
`by`	A `character` `vector` specifying how and in what order the name matching is done.
`...`	Not used.

Details

If an element of patterns contains a comma, then that element is matched against the *getFullNames(), otherwise it is matched against *getNames(). First each pattern is matched by regular expression rules, and if there is not match, then by fixed strings.

Value

Returns an integer vector of length K with elements in [1,*length()] or (integer) NA (for non-matched names).

Author(s)

Henrik Bengtsson