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Chicago Crimes Arrow Data Vega-Lite API VizChicago Crimes Arrow Data Vega VizChicago Crimes EDAChicago Crimes TreemapChicago Crimes Hexgrid MapChicago Crimes Apache Arrow HypergridChicago Crimes by DayChicago Crimes SankeyChicago Crimes Sunburst, 2018Chicago Crimes by LocationChicago Crimes by Ward FlubberChicago Crimes in PerspectiveChicago Crimes by TypeChicago Crimes HeatmapLeaflet Pixi Overlay
Chicago Crimes Ridgeline
data = dailyData
dataUrl = 'https://raw.githubusercontent.com/RandomFractals/ChicagoCrimes/master/data/2018/chicago-crimes-2018.arrow'
dataTable = loadData(dataUrl).then(buffer => arrow.Table.from(new Uint8Array(buffer)))
crimeData = groupByField(dataTable, 'PrimaryType')
dailyCrimes = Object.keys(crimeData)
.sort((a, b) => crimeData[b].length - crimeData[a].length) // order by crime type counts
.slice(0, 20) // top 20
.map(key => {
return {name: key, daily: groupByDay(crimeData[key], key)};
})
dailyData = {
const dailyData = [];
dailyCrimes.map(data => {
Object.keys(data.daily)
.map(day => {
dailyData.push({
name: data.name,
date: new Date(new Date(day).getTime() + timezoneOffset),
value: data.daily[day].length
});
});
});
return dailyData;
}
thefts = groupByDay(crimeData['THEFT'], 'THEFT')
homicides = groupByDay(crimeData['HOMICIDE'], 'HOMICIDE')
function groupByDay(dataArray, crimeType) {
let daily = {};
dataArray.map(data => {
const day = data.date.toISOString().substring(0, 10); // ISO date string
if (!daily[day]) {
daily[day] = [];
}
daily[day].push(data);
});
return daily;
}
import {loadData, toDate} from '@randomfractals/apache-arrow'
import {groupByField} from '@randomfractals/chicago-crimes-by-type'
arrow = require('apache-arrow@0.3.1')
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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.
