# Flag rows on numerical range[¶](https://doc.dataiku.com/dss/latest/preparation/processors/flag-on-range.html#flag-rows-on-numerical-range "Permalink to this headline")

This processor flags rows for which the value is within a numerical range.

The boundaries of the numerical range are inclusive. If the column does not contain a valid numerical value for a row, this row is considered as being out of the range.

This processor creates a column containing ‘1’ for matching (in-range) rows, nothing else.

## Columns selection[¶](https://doc.dataiku.com/dss/latest/preparation/processors/flag-on-range.html#columns-selection "Permalink to this headline")

This processor can check its matching condition on multiple columns:

* A single column

* An explicit list of columns

* All columns matching a given pattern

* All columns

You can select whether the row will be considered as matching if:

* All columns are matching

* Or, at least one column is matching
