valueField property Null safety

String valueField

Value field property for EMA indicator.

Based on the value field property, the moving average is calculated and the indicator is rendered.

Defaults to close.

Widget build(BuildContext context) {
 return SfCartesianChart(
   indicators: <TechnicalIndicators<Sample, num>>[
     EmaIndicator<Sample, num>(
       seriesName: 'Series1'
       period: 4,
       valueField: 'low'
   series: <ChartSeries<Sample, num>>[
     HiloOpenCloseSeries<Sample, num>(
       name: 'Series1'


final String valueField;