Published
Edited
Jan 18, 2022
4 stars
d3 = require("d3-collection@latest")
math = require("mathjs")
lithiumkeys = getkeys(lithiumcsv).sort()
rhod = pgmkeys.slice(8, 11).sort()
pall = pgmkeys.slice(5, 8).sort()
plat = pgmkeys.slice(0, 4).sort()
pgmkeys = getkeys(pgmvalues)
pgmvalues = getvalues(pgmcsv)
niobiumcsv = FileAttachment("niobium-values.csv").csv()
tantalumkeys = getkeys(tantalumcsv).sort()
tantalumcsv = FileAttachment("tantalum-values.csv").csv()
tantalumvalues = getvalues(tantalumcsv)
lithiumvalues = getvalues(lithiumcsv)
lithiumcsv = FileAttachment("lithium-values@1.csv").csv()
cobaltcsv = FileAttachment("cobalt-values.csv").csv()
reecsv = FileAttachment("ree-values@2.csv").csv()
getvalues = (array) =>
array
.map((entry) =>
Object.entries(entry).reduce(
(obj, [key, value]) => ((obj[key] = parseFloat(value)), obj),
{}
)
)
.map((m) => {
m.year = m.Year.toString();
return m;
})
getkeys = (array) =>
Object.keys(array[0])
.slice(1)
.filter((f) => f != "year")
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
