Group Similar Spellings

This transformation is useful when, for example, you have freeform text in a survey, where people will refer to the same concept in many different ways. This helps clean and tidy your data by providing a consistent representation of each concept.

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Parameters

• Column: the column to search and group terms in
• Strength threshold: a factor in the $[0, 1]$ range to make the algorithm more or less sensitive. A value of 1 will merge all ocurrences, while a value closer to 0 will search for stronger correlation between the terms, thus being much more strict with the merging.