Clarify error message for ChrF no. references #247
Merged
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Currently, when you give a different number of references and hypotheses to chrf, you get this error:
When you are only calculate chrf, it is clear that the error comes from calculating chrf. But if you do something like
it takes a moment to realize that chrf is causing the error and not bleu. Clarifying/reminding the user that chrf is implemented through sacrebleu can help.