Stratified Cross-Validation Calculator
K-fold CV with preserved class proportions in each fold
About Stratified Cross-Validation
Stratified k-fold CV ensures each fold has approximately the same class distribution as the full dataset.
When to use:
- Classification problems with imbalanced classes
- Small datasets where random splits may create unrepresentative folds
- When consistent class representation matters
Benefit: Reduces variance in performance estimates compared to regular k-fold CV.
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.