You can subset traits by identifier or by position using the
`[` operator.
Usage
# S4 method for traits,missing,missing,missing
[(x, i, j, ..., drop = FALSE)
# S4 method for traits,numeric,missing,missing
[(x, i, j, ..., drop = FALSE)
# S4 method for traits,character,missing,missing
[(x, i, j, ..., drop = FALSE)Arguments
- x
A traits object.
- i
Position of the identifier or the name of the identifier itself.
- j
Not used.
- ...
Additional arguments not used here.
- drop
Not used.
Value
A traits object.
Examples
# Subset a traits object by identifier
traits_ex01['EFO_0004884']
#> An object of class "traits"
#> Slot "traits":
#> # A tibble: 1 × 3
#> efo_id trait uri
#> <chr> <chr> <chr>
#> 1 EFO_0004884 breast size http://www.ebi.ac.uk/efo/EFO_0004884
#>
# Or by its position in table traits
traits_ex01[1]
#> An object of class "traits"
#> Slot "traits":
#> # A tibble: 1 × 3
#> efo_id trait uri
#> <chr> <chr> <chr>
#> 1 EFO_0004884 breast size http://www.ebi.ac.uk/efo/EFO_0004884
#>
# Keep all traits except the second
traits_ex01[-2]
#> An object of class "traits"
#> Slot "traits":
#> # A tibble: 2 × 3
#> efo_id trait uri
#> <chr> <chr> <chr>
#> 1 EFO_0004884 breast size http://www.ebi.ac.uk/efo/EFO_0004884
#> 2 EFO_0005299 non-word reading http://www.ebi.ac.uk/efo/EFO_0005299
#>