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Class 'extended_selection_table': selection table containing wave objects

Source: R/selection_table.R
is_extended_selection_table.Rd

Class for selections of signals in sound files and corresponding wave objects

Usage

is_extended_selection_table(x)

Arguments

x

R object

Value

A logical argument indicating whether the object class is 'extended_selection_table'

Details

An object of class extended_selection_table created by selection_table is a list with the following elements:

  • selections: data frame containing the frequency/time coordinates of the selections, sound file names, and any additional information

  • check.resutls: results of the checks on data consistency using check_sels

  • wave.objects: list of wave objects corresponding to each selection

  • by.song: a list with 1) a logical argument defining if the 'extended_selection_table' was created 'by song' and 2) the name of the song column (see selection_table)

See also

selection_table, selection_table Check if object is of class "extended_selection_table"

is_extended_selection_table Check if the object belongs to the class "extended_selection_table"

selection_table; is_selection_table

Author

Marcelo Araya-Salas (marcelo.araya@ucr.ac.cr)

Examples

{
  data(list = c("Phae.long1", "Phae.long2", "Phae.long3", "Phae.long4", "lbh_selec_table"))

  is_extended_selection_table(lbh_selec_table)

  writeWave(Phae.long1, file.path(tempdir(), "Phae.long1.wav"))
  writeWave(Phae.long2, file.path(tempdir(), "Phae.long2.wav"))
  writeWave(Phae.long3, file.path(tempdir(), "Phae.long3.wav"))
  writeWave(Phae.long4, file.path(tempdir(), "Phae.long4.wav"))

  st <- selection_table(lbh_selec_table,
    extended = TRUE,
    path = tempdir()
  )

  is_extended_selection_table(st)

  class(st)
}
#> checking selections (step 1 of 2):
#> saving wave objects into extended selection table (step 2 of 2):
#> [1] "extended_selection_table" "data.frame"