R/text_stats.R

In corpus: Text Corpus Analysis

#  Copyright 2017 Patrick O. Perry.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.


text_stats <- function(x, filter = NULL, ...)
{
    with_rethrow({
        x <- as_corpus_text(x, filter, ...)
    })

    ans <- data.frame(tokens = text_ntoken(x),
                      types = text_ntype(x),
                      sentences = text_nsentence(x),
                      row.names = names(x))
    class(ans) <- c("corpus_frame", "data.frame")
    ans
}