Quality engineering workspaceFree MVP
ANALYSIS / SPC

Individuals & Moving Range Charts

Plot observations in time order and calculate 3-sigma control limits.

Measurement input

Paste numbers separated by commas, spaces, or new lines, or import an Excel file. Excel import reads numeric cells in the first column of the first worksheet.

Report information

Optional details printed on your exported PDF report.

Only 3-sigma point violations are flagged on the Individuals chart. This MVP does not evaluate all Western Electric / Nelson rules, or establish process stability automatically.