[Home](./index.md) > [@datashaper/schema](./schema.md) > [OnehotArgs](./schema.onehotargs.md) ## OnehotArgs interface Signature: ```typescript export interface OnehotArgs extends InputColumnArgs ``` Extends: [InputColumnArgs](./schema.inputcolumnargs.md) ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [prefix?](./schema.onehotargs.prefix.md) | | string | (Optional) Optional prefixes for the output column names | | [preserveSource?](./schema.onehotargs.preservesource.md) | | boolean | (Optional) Keep the original columns (default is to remove source columns). |