# Save a term document matrix as CSV.
#
# Copyright (C) 2023, Togaware Pty Ltd.
#
# License: GNU General Public License, Version 3 (the "License")
# https://www.gnu.org/licenses/gpl-3.0.en.html
#
# Time-stamp: <Monday 2025-05-12 11:31:08 +1000 Graham Williams>
#
# Licensed under the GNU General Public License, Version 3 (the "License");
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program.  If not, see <https://www.gnu.org/licenses/>.
#
# Author: Zheyuan Xu

# Timestamp: <TIMESTAMP>
#
# References:
#
# @williams:2017:essentials

# Convert the Term-Document Matrix (tdm) to a matrix and save as CSV.
# This allows for easier sharing and importing into other tools.

tdm <- tm::TermDocumentMatrix(docs)

# Convert to a matrix.

m <- as.matrix(tdm)

# Write the matrix to a CSV file.

write.csv(m, file="<CORPUS_SAVE_NAME>", row.names=TRUE)

# Inform the user.

cat("Term-document matrix saved to", "<CORPUS_SAVE_NAME>", "\n")
