calcStackSize method
calculates the maximum stacksize that occurs in the Entries array of this DataSet
Implementation
void calcStackSize(List<BarEntry> yVals) {
for (int i = 0; i < yVals.length; i++) {
List<double>? vals = yVals[i].yVals;
if (vals != null && vals.length > _stackSize) _stackSize = vals.length;
}
}