---
title: nonzero
description: Documentation page for OpenBB's nonzero function and nonzero_chart function.
These functions are used to retrieve addresses with a non-zero balance of a certain
symbol and plot them respectively.
keywords:
- nonzero function
- nonzero_chart function
- addresses with non-zero balance
- cryptocurrency
- dataframe
- BTC
- chart plotting
- export data
- due diligence
---
import HeadTitle from '@site/src/components/General/HeadTitle.tsx';
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
Returns addresses with non-zero balance of a certain symbol
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/due_diligence/glassnode_model.py#L249)]
```python
openbb.crypto.dd.nonzero(symbol: str, start_date: str = "2010-01-01", end_date: Optional[str] = None)
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| symbol | str | Asset to search (e.g., BTC) | None | False |
| start_date | str | Initial date, format YYYY-MM-DD | 2010-01-01 | True |
| end_date | str | Final date, format YYYY-MM-DD | None | True |
---
## Returns
| Type | Description |
| ---- | ----------- |
| pd.DataFrame | addresses with non-zero balances |
---
Plots addresses with non-zero balance of a certain symbol
Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/cryptocurrency/due_diligence/glassnode_view.py#L96)]
```python
openbb.crypto.dd.nonzero_chart(symbol: str, start_date: str = "2010-01-01", end_date: Optional[str] = None, export: str = "", external_axes: Optional[List[matplotlib.axes._axes.Axes]] = None)
```
---
## Parameters
| Name | Type | Description | Default | Optional |
| ---- | ---- | ----------- | ------- | -------- |
| symbol | str | Asset to search (e.g., BTC) | None | False |
| start_date | str | Initial date, format YYYY-MM-DD | 2010-01-01 | True |
| end_date | Optional[str] | Final date, format YYYY-MM-DD | None | True |
| export | str | Export dataframe data to csv,json,xlsx file | | True |
| external_axes | Optional[List[plt.Axes]] | External axes (1 axis is expected in the list), by default None | None | True |
---
## Returns
This function does not return anything
---