Beispiel #1
0
        protected override void WriteDistilled(IEnumerable <KeyValuePair <string, List <HlaIGenotype> > > patientsAndGenotypes, bool multipleGenotypesPerPatient)
        {
            var patientsAndGenotypesAsList = patientsAndGenotypes.ToList();

            Dictionary <string, MultinomialStatistics> pidToMultinomial  = new Dictionary <string, MultinomialStatistics>();
            Dictionary <string, HlaIGenotype>          pidGenoNameToGeno = new Dictionary <string, HlaIGenotype>(patientsAndGenotypesAsList.Count);

            foreach (var pidAndGenos in patientsAndGenotypes)
            {
                if (pidAndGenos.Value.Count == 1)
                {
                    pidGenoNameToGeno.Add(pidAndGenos.Key, pidAndGenos.Value.Single());
                }
                else
                {
                    pidToMultinomial.Add(pidAndGenos.Key, MultinomialStatistics.GetInstance(pidAndGenos.Value.Select(g => g.Probability))); // keep track of the probabilities in this dictionary

                    HlaIGenotype unionGenotype = HlaIGenotype.Union(pidAndGenos.Value.ToArray());
                    pidGenoNameToGeno.Add(pidAndGenos.Key, unionGenotype);  //Add the union genotype to the matrix.

                    for (int i = 0; i < pidAndGenos.Value.Count; i++)
                    {
                        string pidGenoId = pidAndGenos.Key + "_" + i;
                        pidGenoNameToGeno.Add(pidGenoId, pidAndGenos.Value[i]);
                    }
                }
            }

            Matrix <string, string, SufficientStatistics> m = DenseMatrix <string, string, SufficientStatistics> .CreateDefaultInstance(
                HlaEnumerator.GenerateHlas(patientsAndGenotypes.SelectMany(pidAndGenos => pidAndGenos.Value)),
                pidGenoNameToGeno.Keys,
                MissingStatistics.GetInstance());

            foreach (string hlastr in m.RowKeys)
            {
                HlaI hla = HlaI.Parse(hlastr);
                foreach (string pid in m.ColKeys)
                {
                    bool?match = pidGenoNameToGeno[pid].Matches(hla, MixtureSemantics);
                    m.SetValueOrMissing(hlastr, pid, BooleanStatistics.GetInstance(match));
                    //m.SetValueOrMissing(hlastr, pid, !match.HasValue ? "?" : match.Value ? "1" : "0");
                }
            }

            m.WriteDense(this.Out.CreateTextOrUseConsole());

            string baseName        = Path.GetFileNameWithoutExtension(this.Out.ToString());
            string probabilityFile = this.Out.ToString() == "-" ? "HaplotypeCompletionProbs.txt" : this.Out.ToString().Replace(baseName, baseName + "_haplotypeProbs");

            pidToMultinomial.WriteDelimitedFile(probabilityFile);
        }
Beispiel #2
0
 public MultinomialToSufficientStatisticsConverter()
     : base(
         m => m.IsDefinite ? (SufficientStatistics)DiscreteStatistics.GetInstance(m.BestOutcome) : (SufficientStatistics)MultinomialStatistics.GetInstance(m),
         s =>
 {
     var mult = s as MultinomialStatistics;
     if (mult != null)
     {
         return(mult.Multinomial);
     }
     int i = (int)s.AsDiscreteStatistics();
     return(new Multinomial(i + 1, i));
 }
         )
 { }
Beispiel #3
0
        public static Matrix <string, string, SufficientStatistics> ConvertToMatrix(List <NamedSequence> sequences, MixtureSemantics mix, BinaryOrMultistate dataType, bool keepOneValueVariables)
        {
            var colNames = sequences.Select(s => s.Name);
            //var rowNames = (from posAndAa in sequences.SelectMany(s => s.AASeq)
            //                where !AASeq.IsMissing(posAndAa.Value)
            //                let pos = posAndAa.Key
            //                let aas = posAndAa.Value
            //                from c in aas
            //                let merAndPos = pos + "@" + c
            //                orderby pos, c
            //                select merAndPos).Distinct();
            var rowNames = (from posAndAa in sequences.SelectMany(s => s.AASeq)
                            where posAndAa.Value.Count == 1 && !AASeq.IsMissing(posAndAa.Value)
                            let pos = posAndAa.Key
                                      let aas = posAndAa.Value
                                                let c = aas.First()
                                                        let merAndPos = pos + "@" + c
                                                                        orderby pos, c
                            select merAndPos).Distinct();

            var posToRowNames = (from row in rowNames
                                 let pos = (int)Tabulate.GetMerAndPos(row).Value
                                           group row by pos into g
                                           select new KeyValuePair <int, List <string> >(g.Key, g.ToList())).ToDictionary();

            Matrix <string, string, SufficientStatistics> m = DenseMatrix <string, string, SufficientStatistics> .CreateDefaultInstance(rowNames, colNames, MissingStatistics.GetInstance());

            foreach (var seq in sequences)
            {
                foreach (var posAndAa in seq.AASeq)
                {
                    int pos = posAndAa.Key;
                    if (!posToRowNames.ContainsKey(pos))
                    {
                        Helper.CheckCondition(AASeq.IsMissing(posAndAa.Value), "Something's wrong. We thinking everyone is missing at position {0}, but {1} has {2}", pos, seq.Name, posAndAa.Value);
                        continue;
                    }

                    var relevantRows = posToRowNames[pos];

                    bool isMissing = AASeq.IsMissing(posAndAa.Value);
                    var  myRows    = posAndAa.Value.Select(c => pos + "@" + c).ToList();
                    foreach (var row in relevantRows)
                    {
                        SufficientStatistics value;
                        if (isMissing)
                        {
                            value = MissingStatistics.GetInstance();
                        }
                        else if (!myRows.Contains(row))
                        {
                            value = (BooleanStatistics)false;   //in all cases, this is false
                        }
                        else if (myRows.Count == 1)
                        {
                            value = (BooleanStatistics)true;
                        }
                        else
                        {
                            switch (mix)
                            {
                            case MixtureSemantics.Any:
                                value = (BooleanStatistics)true; break;       //Any means we say you have both

                            case MixtureSemantics.Pure:
                                value = (BooleanStatistics)false; break;       //Pure means we say you have neither

                            case MixtureSemantics.Uncertainty:
                                value = MissingStatistics.GetInstance(); break;       //Uncertainty says we don't know which you have.

                            case MixtureSemantics.Distribution:
                                double pTrue = 1.0 / myRows.Count;
                                value = MultinomialStatistics.GetInstance(new double[] { 1 - pTrue, pTrue });
                                break;

                            default:
                                throw new NotImplementedException("Missing a case.");
                            }
                        }
                        m.SetValueOrMissing(row, seq.Name, value);
                    }
                }
            }

            if (!keepOneValueVariables)
            {
                m = m.SelectRowsView(m.RowKeys.Where(row => m.RowView(row).Values.Distinct().Count() > 1));
            }

            switch (dataType)
            {
            case BinaryOrMultistate.Binary:
                return(m);

            case BinaryOrMultistate.Multistate:
                return(new BinaryToMultistateView <string, string, SufficientStatistics>(m, Tabulate.BinaryToMultistateMapping(m), ValueConverter.SufficientStatisticsToMultinomial));

            default:
                throw new NotImplementedException("Missing a case");
            }
        }