Documentation/Function reference
Function reference · Statistics

zscore

Computes a value's z-score from a mean and standard deviation.

zscore(x, average, standardDeviation) returns (x-average)/standardDeviation. The average and standard deviation are supplied explicitly; this function does not estimate them from a dataset.

Examples

These examples use Nerdamer Notation.

Measure a value one standard deviation above the mean.

zscore(7,5,2)
// → 1

Interfaces

The same operation is available through the interfaces below.

Nerdamer Notation · nerdamer API · Direct API

Nerdamer Notation

Use this form inside input passed to nerdamer(...).

zscore(arg1, arg2, arg3)

nerdamer.zscore

Call the operation through the default nerdamer import.

nerdamer.zscore(x: ExpressionInput, average: ExpressionInput, standardDeviation: ExpressionInput): Expression

Parameters

NameTypeDescription
xExpressionInput—
averageExpressionInput—
standardDeviationExpressionInput—

Returns

Expression

Browse the nerdamer API →

Direct JavaScript / TypeScript API

Import the operation directly from its package entry point.

import { zscore } from 'nerdamer/statistics';
zscore(x: ExpressionInput, average: ExpressionInput, standardDeviation: ExpressionInput): Expression

Parameters

NameTypeDescription
xExpressionInput—
averageExpressionInput—
standardDeviationExpressionInput—

Returns

Expression

Browse nerdamer/statistics →

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