Structural Heatmap for 30 Character EAMs

⚠ Group 1 and Group 2 Excluded
Group 1 and Group 2 30-character messages (the dataset contains over 9,000 such EAMs combined) are excluded from this visualisation by default: their known structure is carried by match deficits and character-marginal skews, which are not highlighted by this system. Structural signals are nonetheless present in both cohorts and are analysed in detail in the 30-character format analysis. This exclusion applies only to Group 1 and 2 messages for this length.