{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/engineering.measurement.accuracy/1.0.0/input.json",
  "title": "Measurement bias (trueness) — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "values": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "number"
      },
      "description": "Repeats on a master. Sample s needs n≥2 when ddof=1. Share-URL: comma-separated. Alias: sample."
    },
    "xm": {
      "type": "number",
      "description": "Master / reference value. Aliases: xref, ref, x_m, X."
    },
    "ddof": {
      "type": "number",
      "description": "Delta degrees of freedom for sample s. Default 1 (Bessel)."
    }
  },
  "required": [
    "values",
    "xm"
  ],
  "description": "VIM trueness: signed bias = x̄ − xm from repeats on a master. s may be zero. Not a single-shot measurement error, not Type A u_A, and not Type-1 Cg (no T). (calculation_version 1.0.0)"
}