Statistical Testing of Keywords and Key Bigrams for Reuters News Corpus

Python scripts to sample word frequencies from Zipf's Law null model, and to generate histogram for significant and insignificant keywords and key bigrams for Reuters new corpus.用于从齐普夫定律（Zipf's Law）空模型中采样词频，并为路透社新语料库中的显著与非显著关键词及关键双词搭配生成直方图的Python脚本。