Return a boolean same-sized object indicating if the values are missing. NaN. null and undefined values get mapped to true, and everything else gets mapped to false.
danfo.DataFrame.isNa(kwargs)
Examples
const dfd = require("danfojs-node")
let data = [[1, 2, 3], [NaN, 5, 6], [NaN, 30, 40], [39, undefined, 78]]
let cols = ["A", "B", "C"]
let df = new dfd.DataFrame(data, { columns: cols })
df.isNa().print()
