[Home](./index.md) > [@datashaper/schema](./schema.md) > [SpreadArgs](./schema.spreadargs.md) > [onehot](./schema.spreadargs.onehot.md) ## SpreadArgs.onehot property Indicates that a onehot-style spread should be performed. This maps all unique cell values to new columns and sets the output cell value to a binary 1/0 based on column match. This is in contrast to the default spread, which just maps array values to column by index. Signature: ```typescript onehot?: boolean; ```