[Home](./index.md) > [@datashaper/schema](./schema.md) > [SampleArgs](./schema.sampleargs.md) > [proportion](./schema.sampleargs.proportion.md) ## SampleArgs.proportion property If table size is unknown ahead of time, specify a proportion of rows to sample. If size is specified, it will be used instead, otherwise computed from this proportion using the table.numRows() Signature: ```typescript proportion?: number; ```