One-Way ANOVA
One-way analysis of variance with exact F-test p-values, boxplot visualization, and post-hoc pairwise comparisons. No external dependencies — pure JavaScript implementation.
Data Input — Group Values
Each group on its own line. Values separated by commas or whitespace.
- F-test: Computes exact p-value from the incomplete beta function using the regularized beta function (betainc). Pure JS — no external statistics libraries.
- Boxplot: Shows min, Q1, median (Q2), Q3, max from sorted values. Whiskers extend to extreme data points within 1.5×IQR.
- Assumptions: ANOVA assumes normality (per group), independent observations, and homoscedasticity (equal variances). Consider Levene's test for the latter.