The reef that regrouped itself

Author a small feature table and compare cluster assignments under alternative scales and starting centres.

Hypothesis and criterion

Name the expected effect, metric and what would count against the hypothesis.

Method and reproducibility

Record fixtures, source, version, parameters, units, controls and how cases are split.

Paired evidence

Case and split Baseline result Changed result Interpretation

Counterexample and revised design

Rescaling one unchanged feature can reorganise the clusters; a different initialisation can reach a different local solution.

Record your new case and rerun the original cases after redesign.

Individual defence

Explain the mechanism, one exact result and what would overturn your conclusion.

Remaining uncertainty and handover

Two clusters and a Euclidean geometry are assumptions; no category truth is supplied.

Next test: _ . Project filename: _ . Work that is mine and tools I used: ____ .

Keep your work

Use fictional data. Download a resumable project before changing devices. On a shared device, turn remembering off and clear your work when finished.