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Manipulation of textual data.

Textual data (pre)processing

remove_punctuation(x[, rm_whitespace])	Remove punctuation and optionally whitespace from textual data.
get_acronym(text[, only_capitals, ...])	Generate an acronym (in capital letters) from textual data.
extract_words1upper(x[, join_with])	Extract words from a string by splitting it at occurrences of uppercase letters.
numeral_english_to_arabic(x)	Convert a number written in English words into its equivalent numerical value represented in Arabic numerals.
count_words(text[, lowercase, ...])	Count the occurrences of each word in the given text.
calculate_idf(documents[, lowercase, ...])	Calculate Inverse Document Frequency (IDF) for a sequence of textual documents.
calculate_tfidf(documents, **kwargs)	Calculate TF-IDF (Term Frequency-Inverse Document Frequency) for the given textual documents.

Textual data analysis

euclidean_distance_between_texts(txt1, txt2)	Compute the Euclidean distance between two sentences.
cosine_similarity_between_texts(txt1, txt2)	Calculate the cosine similarity between two sentences.
find_matched_str(x, lookup_list)	Find all strings in a sequence that match a given string.
find_similar_str(x, lookup_list[, n, ...])	Find n strings that are similar to x from a sequence of candidates.