Essence.Readability.smog_grade

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Link to this function

smog_grade(doc)

The smog_grade method calculates the SMOG grade measure of readability that estimates the years of education needed to understand a piece of writing. The SMOG grade is commonly used in rating health messages. Please note that results for documents with less than 30 sentences are statistically invalid[1].

[1] https://en.wikipedia.org/wiki/SMOG