public override Task <ModelTableFormula> MapToModel(SnapshotTableFormula snapshot, SnapshotContext snapshotContext)
{
var tableFormula = _formulaFactory.CreateDistributedTableFormula();
_tableFormulaMapper.UpdateModelProperties(tableFormula, snapshot);
tableFormula.Percentile = snapshot.Percentile;
snapshot.DistributionMetaData.Select(modelDistributionDataFrom).Each(tableFormula.AddDistributionMetaData);
return(Task.FromResult(tableFormula));
}
private DistributedTableFormula formulaFrom(DataRepository dataRepository)
{
var baseGrid = dataRepository.BaseGrid;
var valueColumns = dataRepository.AllButBaseGrid().ToList();
DataColumn meanColumn, deviationColumn;
if (valueColumns.Count == 1)
{
meanColumn = valueColumns[0];
//dummy deviation filled with 1 since this was not defined in the import action
deviationColumn = new DataColumn(Constants.Distribution.DEVIATION, _dimensionRepository.NoDimension, baseGrid)
{
Values = new float[baseGrid.Count].InitializeWith(1f)
};
}
else
{
meanColumn = valueColumns.Single(x => x.RelatedColumns.Any());
deviationColumn = valueColumns.Single(x => !x.RelatedColumns.Any());
}
var formula = _formulaFactory.CreateDistributedTableFormula().WithName(dataRepository.Name);
formula.InitializedWith(CoreConstants.Parameters.PMA, dataRepository.Name, baseGrid.Dimension, meanColumn.Dimension);
formula.XDisplayUnit = baseGrid.Dimension.Unit(baseGrid.DataInfo.DisplayUnitName);
formula.YDisplayUnit = meanColumn.Dimension.Unit(meanColumn.DataInfo.DisplayUnitName);
foreach (var ageValue in baseGrid.Values)
{
var mean = meanColumn.GetValue(ageValue).ToDouble();
var pma = ageValue.ToDouble();
var deviation = deviationColumn.GetValue(ageValue).ToDouble();
var distribution = new DistributionMetaData {
Mean = mean, Deviation = deviation, Distribution = DistributionTypes.LogNormal
};
formula.AddPoint(pma, mean, distribution);
}
return(formula);
}