{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/engineering.msa.gauge_rr/1.0.0/input.json",
  "title": "Gauge R&R — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "ev": {
      "type": "number",
      "minimum": 0,
      "description": "Equipment variation (repeatability). Provide ev or rbar, not both."
    },
    "rbar": {
      "type": "number",
      "minimum": 0,
      "description": "Average range. EV = R̄/d2 when ev is omitted."
    },
    "d2": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "d2 factor for range-method EV. Default 1.128 (n=2)."
    },
    "av": {
      "type": "number",
      "minimum": 0,
      "description": "Appraiser variation (reproducibility)"
    },
    "pv": {
      "type": "number",
      "minimum": 0,
      "description": "Part variation"
    }
  },
  "required": [
    "av",
    "pv"
  ],
  "description": "AIAG Gauge R&R compose: GRR=√(EV²+AV²), TV=√(GRR²+PV²), %GRR, ndc. Optional range-method EV=R̄/d2. Not a full ANOVA study. (calculation_version 1.0.0)"
}