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whichdimnames

Source: R/FLArray.R
whichdimnames.Rd

Given a names array (an FLQuAnt or FLPar) x, find the positions for which which(x, arr.ind = TRUE) is TRUE (or non-zero) and return a data.frame with the corresponding dimnames values for each dimension.

For each matching position the returned data.frame contains one column per array dimension. Column names are taken from the array's dimnames.

Usage

whichdimnames(x)

Arguments

x

An array-based object (FLQuant, FLPar). Values selected are those for which which(x, arr.ind = TRUE) returns rows.

Value

A data.frame with one row per selected element of x and one column per array dimension. Each cell contains the dimname (character) for that dimension at the selected index.

Details

Extract dimnames values for positions returned by a logical estatement

See also

which

Examples

# lnorm FLQuant
tes <- rlnorm(20, FLQuant(0, dim=c(1, 10)))
# dimnames of values > 5
whichdimnames(tes > 5)
#>    quant year   unit season   area iter
#> 1    all    2 unique    all unique    1
#> 2    all    3 unique    all unique    2
#> 3    all    7 unique    all unique    4
#> 4    all    1 unique    all unique    5
#> 5    all    4 unique    all unique    6
#> 6    all    5 unique    all unique    9
#> 7    all    9 unique    all unique   10
#> 8    all   10 unique    all unique   11
#> 9    all    2 unique    all unique   12
#> 10   all   10 unique    all unique   12
#> 11   all    6 unique    all unique   15
#> 12   all    3 unique    all unique   20