Читаю документацию lda.pdf (по дискриминантному анализу) и там есть некая cora которая везде используется в примерах:
cora
A subset of the Cora dataset of scientific documents.
Description
A collection of 2410 scientific documents in LDA format with links and titles from the Cora search
engine.
Usage
data(cora.documents)
data(cora.vocab)
data(cora.cites)
data(cora.titles)
Format
cora.documents and cora.vocab comprise a corpus of 2410 documents conforming to the
LDA format.
cora.titles is a character vector of titles for each document (i.e., each entry of cora.documents).
cora.cites is a list representing the citations between the documents in the collection (see
related for format).
Source
Automating the construction of internet protals with machine learning. McCallum et al. Information
Retrieval. 2000.
Откуда ее взять-то? Ее нет в пакете MASS, содержащем lda
ссылка на документацию:
