index.tangram {tangram}

Generate an an index from a tangram object

Description

Given a tangram class create an index representation.

Usage

## S3 method for class 'tangram'
index(object, id = "tangram", key.len = 4, ...)

Arguments

object

The tangram for indexing

id

an additional specifier for the object key

key.len

numeric; length of keys generated (affects collision probability)

...

additional arguments to renderer. Unused

Value

A matrix of strings containing key, source and value