public static DataSeries <Value> NormalizeSma10(this DataSeries <Value> values)
{
var sma10 = values.SMA(10);
return(values.ZipElements <Value, Value>(sma10, (v, ma, _) => ma[0] == 0 ? 0 : (v[0] - ma[0]) / ma[0] * 100.0));
}
