---
title: "numeric-slice"
slug: "numeric-slice-parser"
updated: 2022-07-27T21:16:39Z
published: 2022-07-27T21:16:39Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://code.tag.bio/llms.txt
> Use this file to discover all available pages before exploring further.

# numeric-slice

The *numeric-slice* **parser** will evaluate or load data from a single column in comparison with a numeric constant *value*. Depending on the value of the *operator* attribute, the column's data will evaluate to *true*, *false*, or *null*.

It inherits attributes and behaviors from its parent: abstract **parser** - *boolean*.

Note - in the case where a *numeric-slice* **parser** is used to create a **categorical** variable - it is usually a better option to use a *numeric-map* **parser** instead - especially to avoid needing multiple *numeric-slice* parsers to map all data cases from a column into different **variables**.

## Attribute - operator

The *operator* attribute is required.

```
{
  "parser_type": "numeric-slice", 
  "column": "cccc",
  "value": ####,
  
  // The operator attribute defines a comparison function.
  // Options include: 
  // "=" - equals
  // "!=" - not equals
  // "<" - column value is less than the constant value
  // "<=" - column value is less than or equal to the constant value
  // ">" - column value is greater than the constant value
  // ">=" - column value is greater than or equal to the constant value
  //
  "operator": ">"
}
```

## Attribute - value

The *value* attribute is required.

```
{
  "parser_type": "numeric-slice", 
  "column": "cccc",
  "operator": ">",
  
  // The value attribute defines a constant value against which
  // the parser will evaluate dynamic values from the column.
  //
  "value": ####
}
```