@willwade/aac-processors
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    Interface MetricsOptions

    Options for metrics calculation

    interface MetricsOptions {
        coreLists?: string[];
        predictionSelections?: number;
        scanningConfig?: ScanningConfig;
        scanSelectionCost?: number;
        scanStepCost?: number;
        spellingPageId?: string;
        testSentences?: string[];
        usePrediction?: boolean;
        useSmartGrammar?: boolean;
    }
    Index

    Properties

    coreLists? predictionSelections? scanningConfig? scanSelectionCost? scanStepCost? spellingPageId? testSentences? usePrediction? useSmartGrammar?

    Properties

    coreLists?: string[]

    Path to core vocabulary lists to use for analysis

    predictionSelections?: number

    Average number of selections to find a word in prediction

    When prediction is enabled, this estimates how many prediction slots a user needs to check before finding their target word. Default is 1.5 (checking 1-2 predictions on average).

    scanningConfig?: ScanningConfig

    Override scanning configuration

    scanSelectionCost?: number
    scanStepCost?: number

    Custom scanning costs

    spellingPageId?: string

    Optional explicit ID of the spelling/keyboard page

    testSentences?: string[]

    Test sentences for sentence-level effort analysis

    usePrediction?: boolean

    Whether to use prediction for missing words

    When true (default): Words not in the board are assumed to be accessible via prediction at reduced effort (spelling_page_base + prediction_selection)

    When false: Words not in the board must be manually spelled at full effort (10 + word_length * 2.5 per letter)

    Only applies when the board has prediction capability (e.g., SwiftKey)

    useSmartGrammar?: boolean

    Whether to include smart grammar word forms in metrics

    When true (default): Word forms from smart grammar predictions are included in the metrics. If a word exists as both a regular button and a word form, the version with lower effort is used.

    When false: Smart grammar word forms are excluded from metrics. Only actual buttons in the tree are analyzed.

    Only applicable to systems that support smart grammar (e.g., Grid 3). Default is true.

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