Add H-spread to the chart

[yangwao]

This is continued from

• Showing median line from BUY events and H-spread #1121
• 1121: median line, trailing average and h-spread #1291
  You might find research done by @rhaicode on this topic for faster implementation

Spec

• Add H-spread to chart Implement H-spread #1119
• User could see the box plot on the chart https://codepen.io/sgratzl/pen/QxoLoY
• it could be done as a dedicated chart or shown as separate column next to the main chart on the right

[preschian]

when I tried to add a box plot chart using this data https://kodadot.xyz/rmrk/collection/e0b9bdcc456a36497a-RMRKBNNRS?tab=chart
the chart showed like this

is that ok? because there are some outliers data far from median/boxed data
link demo using data from that URL: https://codepen.io/preschian/pen/rNdzbdJ?editors=0010

[preschian]

it was better after removed outliers data

[yangwao]

it was better after removed outliers data

beautiful!

[preschian]

👋

[kodabot]

ASSIGNED - @preschian 🔒 LOCKED -> Saturday, July 30th 2022, 04:05:22 UTC -> 72 hours

[kodabot]

ASSIGNMENT EXPIRED - @preschian has been unassigned.