logBase property
The base value for logarithmic axis. The axis label will render this base value.i.e 10,100,1000 and so on.
Defaults to 10.
Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
          primaryYAxis: LogarithmicAxis(logBase: 10),
       )
   );
}
Implementation
final double logBase;