Learn R Programming

Epi (version 1.1.71)

subset.Lexis: Subsetting Lexis (and stacked.Lexis) objects

Description

Return subsets of Lexis objects which meet conditions

Usage

## S3 method for class 'Lexis':
subset(x, ...)
## S3 method for class 'stacked.Lexis':
subset(x, ...)

Arguments

x
an object of class Lexis
...
additional arguments to be passed to subset.data.frame. This will normally be some logical expression selecting a subset of the rows. For details see subset.data.frame.

Value

  • A Lexis object with selected rows and columns.

Details

The subset method for Lexis objects works exactly as the method for data frames.

The method for stacked.Lexis objects also shrinks the set of levels for lex.Cst and lex.Xst to those actually occurring in the data frame.

See Also

Lexis, merge.Lexis