QAPP
QAPP ANALYTICS · INTERACTIVE DEMO

Advanced linear regression

Coefficient confidence intervals, ANOVA, prediction, residuals, leverage, Cook D and influence diagnostics.

Your data

Two columns X;Y, minimum 3 pairs. X must vary.

CSV/TXT without a header or pasted from Excel. Separator: semicolon or TAB; decimal separator: dot or comma. Maximum 200 observations in total, not 200 per group. Data is processed in the browser and is not uploaded to the server.

About the calculation

Simple linear regression: slope, intercept, R², residuals and slope test.

Calculations run locally in the browser. Statistical distributions and functions use jStat 1.9.6; values are rounded only for display. For method selection, conditions of use and interpretation criteria, see the “Sources and methodological alignment” section above and any customer-specific requirements.

Ready for your data

Upload a dataset or use the example, then click “Calculate results”. Results will include charts, values and interpretation conditions.