public void Redistribute_TotalWeightLessThanOne_RedistributedWeightIsAprroxOne()
{
var weights = new StockWeights
{
{ "TLV", 0.1m }, { "FP", 0.2m }, { "EL", 0.3m }
};
weights = weights.Redistribute();
Assert.IsTrue(weights.Sum(w => w.Value).IsApproxOne());
}
/// <summary>
/// Equaly redistributes weights such that their sum is 1.
/// </summary>
/// <remarks>
/// This applies for both cases, weights over 1 or less than 1.
/// </remarks>
public static StockWeights Redistribute(this StockWeights weights)
{
var totalWeight = weights.Sum(w => w.Value); // this needs to become 1 after redistribution
return(weights.Select(w => (w.Key, w.Value / totalWeight)).AsStockWeights());
}
