Find all unique words from the file and calculate frequency

Unique words from the file and their numbers of meeting in it

Reference to:

[1] Valentyn N Sichkar. Find all unique words from the file and calculate frequency // GitHub platform [Electronic resource]. URL: https://github.com/sichkar-valentyn/Find_all_unique_words_from_the_file_and_calculate_frequency (date of access: XX.XX.XXXX)

Description

Working with the data from the file. Showing the result in order it occured in the initial string.

MIT License

Copyright (c) 2018 Valentyn N Sichkar

github.com/sichkar-valentyn

Reference to:

[1] Valentyn N Sichkar. Find all unique words from the file and calculate frequency // GitHub platform [Electronic resource]. URL: https://github.com/sichkar-valentyn/Find_all_unique_words_from_the_file_and_calculate_frequency (date of access: XX.XX.XXXX)