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Whole-Sample Dataset Allocation

Allocate exact whole-sample train, validation and test counts using documented rounding, preserving the total and flagging empty splits.

Use this result well

Inputs that matter
Total samples, Training percentage (%), Validation percentage (%), Test percentage (%)
Output to expect
Train / validation / test counts
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Whole-sample dataset allocation

Floor each exact quota N × percent/100; assign remaining samples by descending fractional remainder, with train → validation → test as the tie order Count allocation with a documented rounding rule. No samples are selected, shuffled or stratified by this calculator. Group, person and time boundaries can take priority over exact row percentages. Preprocessing must be fitted on training data within each relevant split. No universal ratio is recommended.

Updated: September 2026

Example Scenarios

Allocate a whole dataset across three percentages using largest remainders, preserving every sample and a nonnegative count in every split.

Common Mistakes to Avoid

Applying whole-sample dataset allocation outside its stated assumptions

No samples are selected, shuffled or stratified by this calculator. Group, person and time boundaries can take priority over exact row percentages. Preprocessing must be fitted on training data within each relevant split. No universal ratio is recommended.

FAQ

A fixed tie order makes the allocation reproducible. Your data-splitting library can use a different rounding rule.

No. Precision, class coverage and dependence determine whether the evaluation is adequate.

About Whole-Sample Dataset Allocation

Allocate exact whole-sample train, validation and test counts using documented rounding, preserving the total and flagging empty splits. Choose the mode that matches your measurements or study design, enter the stated units and keep the method and limits with the result.