phrase.matrix

Either a textreg.result object or the rules list from such an object.

rules

(Optional) If giving a rules list, the number of documents in corpus.

Construct a $n X p$ matrix of appearances for selected phrases out of textreg object.
$n$ is the number of documents, $p$ is the number of phrases selected in the result object `rules.'

Function for sparse regression on raw text, regressing a labeling
vector onto a feature space consisting of all possible phrases.

phrase.matrix: Make matrix of where phrases appear in corpus.

Description

Usage

Arguments