Get Alditol Status

Determine whether the reducing-end residue of a glycan is an alditol. Alditol status is stored as the graph-level logical attribute alditol. Legacy graphs without this attribute are treated as non-alditols.

Usage

get_alditol(x)

Arguments

x

A glycan structure vector or one glycan igraph.

Value

A logical vector for structure-vector input, or one logical scalar for graph input. Missing structure-vector elements return NA.

Examples

glycans <- as_glycan_structure(c(
  reduced = "Gal(b1-4)GlcNAc-ol(a1-",
  ordinary = "Gal(b1-4)GlcNAc(a1-"
))
get_alditol(glycans)
#>  reduced ordinary 
#>     TRUE    FALSE