timeline - trend

An example of how to draw a trend line.

Usages :

• Drag & Drop each point to see the impact on the trend line

Notes:

• trend line computetd using least square method
• experiment how outliers (aberant values) have a huge impact on the trend line (cf. Timeline - trend, confidence interval, outliers for outlier detection)

Acknowledgments:

• done with D3 v3.5.5
• blockbuilder.org
• drag behavior from mbostock‘s block: Drag + Zoom