Milk to solids transition
Daily milk intake (left axis) vs. meal appetite score (right axis). The crossover shows the weaning arc from infant to toddler.
Developmental milestones: changepoint detection
The red dashed line marks the month where the rate of milk decline changed most sharply — the structural break in the weaning curve.
The red dashed line marks when the 2-nap to 1-nap transition was most abrupt — the pivot week in nap consolidation.
Sleep consistency over time
Week-to-week variability in nap duration (standard deviation). A declining trend means the routine is becoming more predictable.
Day-of-week patterns
Average nap duration and meal score by day of the week across all attended days. Friday naps are significantly longer than other days (ANOVA p = 0.010).
Does AM snack predict lunch?
For each level of AM snack consumption, the average lunch score. A flat line means appetite is independent across meals; a positive slope means good days are consistently good.
Day quality index
Composite of sleep adequacy (vs. age-typical), meal appetite, and nappy health — each normalised 0–1 and averaged. Upward trend reflects overall development.
Poor days over time
Three separate signals: nappy rash days (cream/rash mentioned), poor appetite days (≥2 meals scored ≤1), and short nap days (<50% of monthly average). Rash dominates — periods where all three spike together are more likely genuine illness episodes.
Sleep vs. appetite
Each dot is one day: X = total nap time, Y = average meal score. No meaningful correlation in any period — sleep and appetite are independent signals.