## getMinValue

### Description

Returns the current minimum value of the graph.

### Returns

1. `number` minValue - The current minimum value of the graph.

### Usage

* Gets the minimum value of the graph

```lua
local mainFrame = basalt.createFrame()
local aGraph = mainFrame:addGraph()
local minValue = aGraph:getMinValue()
basalt.debug("Min value:", minValue)
```