Quick example:
--help: Print this help message -f: The file pithy will read from. Required. --sentences: The number of sentences for pithy to return. Defaults to 3. --biasstrength: The strength of the bias, must be an integer. Defaults to 6. --bysection: If set, pithy splits the text into sections, and each section is summarized separately. Defaults to false. --chunksize: The number of sentences to read at a time. Defaults to 500 if unspecified. --forceall: If set, pithy reads the text all at once. Can be quite slow once you go past the 7k mark. Defaults to false. --forcechunk: If set, regardless of how large the text is, pithy splits it into chunks. Should be used in combination with chunksize and bysection. --ngrams: If set, pithy uses ngrams rather than words. It's usually crap, but you might use it as a last resort for non-spaced languages that you can't pre-tokenise. Defaults to false. --minlength: The minimum sentence length before filtering. Defaults to 30. --maxlength: The maximum sentence length before filtering. Defaults to 1500. --separator: The separator used to split the text into sentences. Defaults to '. '. You can type newline to separate by newlines. --cleanwhitespace: If set, removes sentences with excessive whitespace. Useful for pdfs and copy-pastes from websites. --cleannonalphabetic: If set, removes sentences with too many non-alphabetic characters. --cleancaps: If set, removes sentences with too many capital letters. Useful if the text contains a lot of references or indices. --lengthpenalty The length penalty. Defaults to 1.5. Decrease to make glance for longer sentences, increase for shorter sentences. --density Experimental setting. Defaults to 3. Setting it lower seems to bias pithy's summaries towards more common words, setting it higher seems to bias summaries towards rarer but more informative words. --nocontext If set, the context surrounding sentences isn't provided. Defaults to false. --relevance If set, the sentences are sorted by their relevance rather than their order in the original text. Defaults to false. --nobar If set, the progress bar is not printed. Defaults to false because progress bars are cool.