pliers.extractors.VADERSentimentExtractor¶
- class pliers.extractors.VADERSentimentExtractor[source]¶
Bases:
TextExtractor
Uses nltk’s VADER lexicon to extract (0.0-1.0) values for the positve, neutral, and negative sentiment of a TextStim. Also returns a compound score ranging from -1 (very negative) to +1 (very positive).
- transform(stim, *args, **kwargs)¶
Executes the transformation on the passed stim(s).
- Parameters
One or more stimuli to process. Must be one of:
A string giving the path to a file that can be read in as a Stim (e.g., a .txt file, .jpg image, etc.)
A Stim instance of any type.
An iterable of stims, where each element is either a string or a Stim.
validation (str) –
String specifying how validation errors should be handled. Must be one of:
’strict’: Raise an exception on any validation error
’warn’: Issue a warning for all validation errors
’loose’: Silently ignore all validation errors
args – Optional positional arguments to pass onto the internal _transform call.
kwargs – Optional positional arguments to pass onto the internal _transform call.