read_captcha_: Read a captcha file
Description
Read a captcha file
Usage
read_captcha_(file, ans_in_path, vocab)
Arguments
ans_in_path
Whether or not the answer to the captcha is already
in the path to the file (separated by and underscore in the filename)
vocab
Character vector with all possible values in the captcha. If
not specified, answers won't be transformed to the matrix format.