API Reference / configurationFit · function

Function: configurationFit()

function configurationFit(
   engine, 
   jdUt, 
   target, 
   opts?): number;

Similarity between the sky at jdUt and a target feature vector — shorthand for cosineSimilarity(chartFeatures(engine, jdUt, opts), target). The scoring function searchConfigurations maximizes.

Parameters

Parameter	Type	Description
`engine`	`Engine`	The engine used to evaluate positions.
`jdUt`	`number`	Julian Day in UT.
`target`	`number`[]	A target feature vector from chartFeatures.
`opts`	`FeatureOptions`	FeatureOptions — must match those used to build `target`.

Returns

number

Cosine similarity in [-1, 1].

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