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Visualizing longitudinal data with a trajectory/best-fitting mean growth curve and a spaghetti plot using R - Stack Overflow
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Plotting longitudinal data with geom_point() + geom_line() | Professional dataviz with ggplot2 | R - YouTube
![Plotting longitudinal data with geom_point() + geom_line() | Professional dataviz with ggplot2 | R - YouTube Plotting longitudinal data with geom_point() + geom_line() | Professional dataviz with ggplot2 | R - YouTube](https://i.ytimg.com/vi/rk2mAzAVzTc/maxresdefault.jpg)
Plotting longitudinal data with geom_point() + geom_line() | Professional dataviz with ggplot2 | R - YouTube
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