Look up 1-based positions of entries in an axis.

Usage

axis_indices(daf, axis, entries, allow_empty = FALSE, allow_missing = FALSE)

Arguments

daf: A DafReader.
axis: Axis name (character scalar).
entries: Character vector of entry names to resolve.
allow_empty: If TRUE, the empty string "" resolves to a zero index (mirrors Julia axis_indices(...; allow_empty=true)).
allow_missing: If TRUE, any non-empty name that is not present in the axis resolves to a zero index (mirrors Julia axis_indices(...; allow_missing=true)).

Value

Integer vector of positions (1-based when present; 0L when allow_empty/allow_missing substitutes for an empty or absent name); same length as entries.

Examples

# Mirrors readers.jl jldoctest at line 389.
axis_indices(example_metacells_daf(), "type",
             c("MPP", ""), allow_empty = TRUE)
#> [1] 4 0
# 4 0