[Home](./index.md) > [@datashaper/schema](./schema.md) > [Field](./schema.field.md) > [derivedFrom](./schema.field.derivedfrom.md) ## Field.derivedFrom property Provenance hints for the source of this field. For example, categorical fields are often onehot encoded into new binary columns, this would link back to the original categorical. Signature: ```typescript derivedFrom?: string[]; ```