Specify configuration options for a vchart().
      v_specs.RdSpecify configuration options for a vchart().
Arguments
- vc
- An htmlwidget created with - vchart().
- ...
- List of options to specify for the chart, see https://www.visactor.io/vchart/option/. 
- serie_id
- Used to set or modify options for a chart where there are multiple series. You can use : - a - numericto target the position of the serie in the order where it's added to the chart
- a - characterto refer to a- serie_idset when the serie was added to the plot.
 
- drop_nulls
- Drop NULL elements from the options. 
Value
A vchart() htmlwidget object.