Return a DAG node symbol.
Similar to dag.letter(), but returning a string to label a DAG node. Adjusted nodes are marked by a preceding underscore.
dag.letter2(dag, letter, alt.symb)
dag |
The dagRdag object for which a node symbol is to be returned. |
letter |
The number of the node for which the symbol (often a single letter...) is to be returned. |
alt.symb |
If TRUE, the alternative node symbols of the DAG object will be used. |
A string containing the DAG letter or alternative symbol.
Lutz P Breitling <l.breitling@posteo.de>
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