internal HypercubeSampleGenerator(
Arr <ParameterState> parameterStates,
LatinHypercubeDesign latinHypercubeDesign,
RankCorrelationDesign rankCorrelationDesign,
int nSamples,
int?seed,
IRVisServerPool serverPool
) : base(parameterStates, rankCorrelationDesign, nSamples, seed, serverPool)
{
_latinHypercubeDesign = latinHypercubeDesign;
}
internal static _LatinHypercubeDesignDTO ToDTO(this LatinHypercubeDesign latinHypercubeDesign)
{
return(new _LatinHypercubeDesignDTO
{
C = latinHypercubeDesign.C.ToNullable(),
Imax = latinHypercubeDesign.Imax,
Iterations = latinHypercubeDesign.Iterations,
LatinHypercubeDesignType = latinHypercubeDesign.LatinHypercubeDesignType.ToString(),
P = latinHypercubeDesign.P.ToNullable(),
Profile = latinHypercubeDesign.Profile.ToString(),
T0 = latinHypercubeDesign.T0.ToNullable()
});
}
internal SamplingDesign(
DateTime createdOn,
Arr <DesignParameter> designParameters,
LatinHypercubeDesign latinHypercubeDesign,
RankCorrelationDesign rankCorrelationDesign,
int?seed,
DataTable samples,
Arr <int> noDataIndices
)
{
CreatedOn = createdOn;
DesignParameters = designParameters;
LatinHypercubeDesign = latinHypercubeDesign;
RankCorrelationDesign = rankCorrelationDesign;
Seed = seed;
Samples = samples;
NoDataIndices = noDataIndices;
}
internal static IRunControlTask Create(TomlTable taskSpec, IAppState appState, IAppService appService)
{
RequireTrue(
taskSpec.ContainsKey("n_samples"),
"Distribution sampling task spec has missing n_samples setting"
);
RequireTrue(
taskSpec.ContainsKey("distributions"),
"Distribution sampling task spec has missing distributions"
);
RequireTrue(
taskSpec.ContainsKey("outputs"),
"Distribution sampling task spec has missing outputs"
);
var name = taskSpec["name"].Get <string>();
RequireNotNullEmptyWhiteSpace(name, "Invalid task name");
var nSamples = taskSpec["n_samples"].Get <int>();
RequireTrue(nSamples > 0, "Invalid n_samples");
var distributionSpecs = taskSpec["distributions"] as TomlArray;
RequireNotNull(
distributionSpecs,
"Distribution sampling task spec has missing or misspecified distributions"
);
RequireTrue(
distributionSpecs.Length > 0,
"Distribution sampling task spec has empty distributions"
);
var distributions = distributionSpecs.Items
.Select(tv => Distribution.ParseRelation(tv.Get <string>()))
.ToArr();
LatinHypercubeDesign latinHypercubeDesign = LatinHypercubeDesign.Default;
if (taskSpec.ContainsKey("latin_hypercube"))
{
var latinHypercubeSpec = taskSpec["latin_hypercube"] as TomlTable;
RequireNotNull(latinHypercubeSpec, "Expecting Latin hypercube specified as table array");
RequireTrue(latinHypercubeSpec.ContainsKey("type"), "Latin hypercube missing type");
var type = latinHypercubeSpec["type"].Get <LatinHypercubeDesignType>();
var t0 = latinHypercubeSpec.ContainsKey("t0") ? latinHypercubeSpec["t0"].Get <double>() : NaN;
var c = latinHypercubeSpec.ContainsKey("c") ? latinHypercubeSpec["c"].Get <double>() : NaN;
var iterations = latinHypercubeSpec.ContainsKey("iter") ? latinHypercubeSpec["iter"].Get <int>() : default;
var p = latinHypercubeSpec.ContainsKey("p") ? latinHypercubeSpec["p"].Get <double>() : NaN;
var profile = latinHypercubeSpec.ContainsKey("profile") ? latinHypercubeSpec["profile"].Get <TemperatureDownProfile>() : default;
var imax = latinHypercubeSpec.ContainsKey("imax") ? latinHypercubeSpec["imax"].Get <int>() : default;
var haveDesignType = type != LatinHypercubeDesignType.None;
var hasValidSA = IsNaN(t0) || (!IsNaN(c) && iterations > 0 && !IsNaN(p));
RequireTrue(
!haveDesignType || hasValidSA,
"Invalid Latin hypercube configuration"
);
latinHypercubeDesign = new LatinHypercubeDesign(type, t0, c, iterations, p, profile, imax);
}
Arr <(string Parameter, Arr <double> Correlations)> correlation = default;
if (taskSpec.ContainsKey("correlation"))
{
var correlationSpec = taskSpec["correlation"] as TomlTableArray;
RequireNotNull(correlationSpec, "Expecting correlation specified as table array");
correlation = correlationSpec.Items
.Cast <TomlTable>()
.Select(tt => (
Parameter: tt["name"].Get <string>(),
Correlations: tt["values"].Get <double[]>().ToArr()))
.ToArr();
var correlationComplete = distributions.ForAll(
d => correlation.Exists(c => c.Parameter == d.Variable)
);
RequireTrue(correlationComplete, "Incomplete correlation matrix");
RequireTrue(correlation.Count == distributions.Count, "Unexpected data in correlation matrix");
}
var outputSpecs = taskSpec["outputs"] as TomlArray;
RequireNotNull(
outputSpecs,
"Distribution sampling task spec has missing or misspecified outputs"
);
RequireTrue(
outputSpecs.Length > 0,
"Distribution sampling task spec has empty outputs"
);
var outputNames = outputSpecs.To <string>().ToArr();
return(new DistributionSamplingTask(
name,
nSamples,
distributions,
latinHypercubeDesign,
correlation,
outputNames,
appState,
appService
));
}