Research Workbench

Integer digit-heaping profile

Inspect last-digit frequencies and concentration at multiples of five and ten.

Your entries stay in this page’s memory and are not submitted to us. Downloads are generated locally. Reloading or leaving the page clears your entries. Do not enter patient information.

Use 5–500 nonnegative whole measurements. Values must share a unit and recording precision. This is a descriptive audit with no uniform-digit significance test.

The starting values are hypothetical. Results update as you edit. Use aggregate or synthetic inputs only.

Calculation results

Observations
10
Last-digit counts 0 through 9
5, 1, 1, 0, 0, 3, 0, 0, 0, 0
Fraction divisible by five
0.8
Fraction divisible by ten
0.5
Interpretation
Descriptive rounding pattern only; no fraud or data-error inference.

How to interpret the output

Digit heaping may reflect rounding, instrument resolution or a genuinely structured distribution. Last digits are not generally uniform, so concentration alone is not evidence of fabrication or error. Compare with the collection protocol and source records before changing values.

Method reference

Source checked 2026-11-06. Read the reproducible calculator validation report.