Databricks Certified Machine Learning - Associate
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When is the StringIndexer most appropriately used in machine learning?
A
When you aim to distinguish between categorical and non-categorical data without prior knowledge of the data types
B
When you need to perform dimensionality reduction on the input data
C
When you wish to convert the final output column back to its original textual form
D
When you want the machine learning algorithm to recognize a column as a categorical variable