Amount-Based Stratification for Random Sampling
Punchcard's Random sampling can now split populations into amount-based strata with suggested cut points, and subrequest table imports support sampling methods — plus fixes to requests and the engagement board.
New: Stratify Random samples by amount
- Random sampling can now split a numeric column into amount-based strata (ranges), not just by distinct text values.
- Drag cut points directly on a visual bar, or use Suggest to propose cut points automatically (equal-dollar ranges or a statistically optimized method) along with how much of the sample each stratum should receive (even split, proportional to size, or an allocation that favors strata with more variation).
- Each stratum shows its item count and lets you set its own share of the sample as a count or a percentage.
- Sampling receipts (Excel and PDF) document each stratum's range, item count, and how the sample was drawn.
New: Sampling methods for subrequest table imports
- When adding subrequests from a pasted table, you can now choose a sampling method — Random (including amount stratification), MUS, High Value, or JE Testing — so only the sampled rows become subrequests, with the sampling run saved for your receipt.
- If creating subrequests fails partway through, the import dialog now stays open so you can retry without re-pasting or losing your sample.
Fixed
- The request panel's Add workpaper option is back for firms still using the classic workpaper builder; requests that already have a workpaper continue to show a one-click Open workpaper button.
- The privacy lock icon on a request's header no longer gets visually clipped, which had been preventing it from opening.
- Several accessibility and polish improvements to the sampling panel: better color contrast on warnings, visible focus outlines for keyboard navigation, larger click targets on strata handles and buttons, and respect for reduced-motion settings.
- Minor visual fixes on the engagement board: the Add button stays circular, category colors are preserved when reordering groups, and sort-direction icons are now consistent.