has_linkages

Unknown linkages in a glycan structure are represented by "??-?".
Also, a linkage can be partially known (e.g. "a?-?").
This function checks if a glycan structure has linkages,
in a strict or lenient way.

Computational representations of glycan compositions and structures,
including details such as linkages, anomers, and substituents. Supports varying
levels of monosaccharide specificity (e.g., "Hex" or "Gal") and ambiguous linkages.
Provides robust parsing and generation of IUPAC-condensed structure strings.
Optimized for vectorized operations on glycan structures, with efficient handling
of duplications. As the cornerstone of the glycoverse ecosystem, this package
delivers the foundational data structures that power glycomics and glycoproteomics
analysis workflows.

Bin Fu

glyrepr

Representation for Glycan Compositions and Structures

has_linkages function

<dl><dt>glycan</dt>
<dd>A <code>glycan_structure()</code> vector.</dd>
<dt>strict</dt>
<dd>A logical value.<ul>
<li>If <code>FALSE</code> (default), a glycan is considered to have linkages if any
linkage is partially known (not "??-?").</li>
<li>If <code>TRUE</code>, a glycan is considered to have linkages only if all linkages
are fully determined (no "?" in the linkage).</li>
</ul></dd></dl>

Arguments

Determine if a Glycan Structure has Linkages — has_linkages

<dl>

<dt>glycan</dt>
<dd>A <code>glycan_structure()</code> vector.</dd>


<dt>strict</dt>
<dd>A logical value.<ul>
<li>If <code>FALSE</code> (default), a glycan is considered to have linkages if any
linkage is partially known (not "??-?").</li>
<li>If <code>TRUE</code>, a glycan is considered to have linkages only if all linkages
are fully determined (no "?" in the linkage).</li>
</ul></dd>

</dl>

has_linkages: Determine if a Glycan Structure has Linkages

Description

Usage

Value

Arguments

See Also

Examples