new RangedFilter(low, high)
RangedFilter is a filter which accepts keys between low and high.  It is used to implement X
axis brushing for the coordinate grid charts.
Its filterType is 'RangedFilter'
Parameters:
| Name | Type | Description | 
|---|---|---|
low | 
            
            Number | |
high | 
            
            Number | 
- Source:
 
Returns:
- Type
 - Array.<Number>