Inputs.table(data)
data.columns
data.length
data[20]
data[100].genres
key1 = data.filter(d => d.key === 1).length
Object.keys(data[1])
genrebykey = d3.group(data, d => d.key)
genrebykey.get(6)
d3.rollup(data, v => v.length, d => d.key)
d3.rollup(data, v => d3.mean(v, d => d.energy), d => d.key)
d3.least(d3.rollup(data, v => d3.mean(v, d => d.energy), d => d.key), ([, mean]) => -mean)
d3.least(d3.group(data, d => d.key), ([, v]) => -d3.mean(v, d => d.energy))
index = d3.index(data, d => d.genres)
d3.groupSort(data, g => d3.mean(g, d => d.energy), d => d.key)
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.
