Professor of Statistics at Stockholm University
import {addColumn} from "@observablehq/excel-add-columns"
optimjs = require('optimization-js@1.5.0/dist/optimization.js')
data_high = ebaydata.filter(d => d.ReservePriceFrac > reserve_threshold)
y = Array.from(d3.map(data, d => d.NBidders))
y_high = Array.from(d3.map(data_high, d => d.NBidders))
mle = d3.mean(y)
mle_high = d3.mean(y_high)
regdata = ebaydata.map(d => ({y: d.NBidders, x: d.ReservePriceFrac}))
function geomean_like(data, param){
const probs = data.map(x => (Math.exp(-param)*param**x)/mathjs.factorial(x));
const logprobs = probs.map(d => Math.log(d))
return Math.exp(mathjs.mean(logprobs))
}
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.
