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Numeric Outlier Inspector
Inspect every numeric observation using explicit IQR and modified-z rules.
Numeric observations, IQR fence multiplier, Absolute modified z threshold
JSON
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the displayed example values,or choose the local input files requested by the controls. Optional source files take precedence where labelled.
- Choose Calculate result and inspect the complete result and any reported limitations.
- Use Download result and each companion download link to save complete outputs. Reset clears output and restores example controls.
Examples
Numeric observations: [1,2,3,4,100]
IQR fence multiplier: 1.5
Absolute modified z threshold: 3.5
Limitations
- Inspect every observation against IQR fences and modified MAD z-scores. Quartiles use Hyndman-Fan type7 linear interpolation; modified z uses0.6744897501960817. Fence equality is retained. Zero MAD gives undefined scores plus a separate differs-from-center flag. No observations are deleted and flags do not establish errors. IQR multiplier0–100; positive MAD threshold up to100. Numeric JSON arrays,at most10,000 observations,each within +/-1e12; no strings,nulls or missing values. Download the complete JSON report. All processing stays in your browser. Combined input limit: 400,000 UTF-8 bytes, 100,000 characters per field; report limit: 4 MiB. Floating-point rounding and probability underflow can occur.
- Complete outputs only. Unsupported or oversized input is refused. Follow the displayed job-specific bounds and format policies.
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