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Plotly Express gets you to an interactive chart fast, but custom layouts and large datasets often require dropping into Graph Objects. Here is how to decide when to switch.
Plotly Express lets you create polished, faceted scatter plots with a single line of code, but it hides performance and customization limits. Learn when to stay at the high‑level API and when to drop down to graph_objects for custom annotations, dual‑axes, and WebGL rendering.
Add ordinary least squares trendlines to Plotly Express scatter plots, with limits and verification steps.
Deciding between Plotly Express and Graph Objects is a balance of speed and control. Learn when to use high-level wrappers for tidy data and when to drop down to low-level traces for complex engineering.
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