Show standard deviation in grades using error bars#117
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yutotakano merged 2 commits intoJun 14, 2026
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We create another set of series in the grades chart, with the name
[EUCLID-CODE]-stddev. This uses a custom render function to draw three lines (vertical, horizontal, horizontal) to replicate error bars. When a series without the-stddevsuffix is hovered, we programmatically show the corresponding series with the-stddevsuffix. When the mouse is no longer hovering, we also programmatically hide the corresponding stddev series (but only after a short delay, to prevent rapid flickering when the mouse is moved imprecisely along a series).The positive and negative side "errors" are the same length for all points since we use the standard deviation.