BIOINFORMATICS-BASICS5 MIN READ
Debug sample labels before biology
Trace and resolve sample-label inconsistencies before interpreting an analysis result.
Suspicious outlier One sample sits in the wrong PCA cluster and has three different labels across files. The fastest biological story may be a metadata bug. Provenance debug Trace identifiers across every handoff The goal is to find where the label changed, not to explain the plot first. Shortcut Call it an outlier The analysis reflects samples, not spreadsheet drift. Stable IDs are the spine of a bioinformatics project. 01 Pause 02 Trace 03 Repair Pause interpretation First move
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