-These transformation functions are primarily [model-dependent transformations](https://www.hopsworks.ai/dictionary/model-dependent-transformations). Model-dependent transformations generate feature data tailored to a specific model, often requiring the computation of training dataset statistics. Hopsworks enables you to define custom model-dependent transformation functions that can take multiple features and their associated statistics as input and produce multiple transformed features as output. Hopsworks also automatically executes the defined transformation function as a [`@pandas_udf`]((https://spark.apache.org/docs/3.1.2/api/python/reference/api/pyspark.sql.functions.pandas_udf.html)) in a PySpark application and as Pandas functions in Python clients.
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