6.4

## Filters
Multiple filters can be used, and they can be combined with `page`, `limit`, `offset`, and `sample`.

*  **test field using regex**  - `?grep[field]=regex`
*  **field ==  value**  - `?eq[field]=value`
*  **field != value**  - `?ne[field]=value`
*  **field > value**  - `?gt[field]=value`
*  **field < value**  - `?lt[field]=value`
*  **field >= value**  - `?gte[field]=value`
*  **field <= value**  - `?lte[field]=value`

## Examples

*  **index field ends with `Biko.`**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?grep[index]=Biko.$
*  **index field == 5**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?eq[index]=5
*  **index field != 5**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?ne[index]=5
*  **index field > 10**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?gt[index]=10
*  **index field < 10**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?lt[index]=10
*  **index field >= 10**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?gte[index]=10
*  **index field <= 10**  http://phantmqtt.sparkfun.com/output/BDPQQyM6pvf73kaRE2Ppc6z2Mwg?lte[index]=10