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height = width
color = d3.scaleOrdinal().range(d3.schemeCategory10)
format = d3.format(",d")
communityData = d3.csv(communitiesInfoUrl)
sides = {
// group communities by side
const sides = {}
communityData.slice(1) // skip 1st null row
.map(community => {
if (!sides[community.Side]) {
sides[community.Side] = [];
}
sides[community.Side].push(community);
});
return sides;
}
communities = {
// create communities info map
const communities = {}
communityData.slice(1) // skip 1st null row
.map(community => communities[community.CommunityName.toLowerCase()] = community);
return communities;
}
function groupBySide(sides, homicides) {
const communityData = groupByCommunity(homicides);
return {
name: 'flare',
children: Object.keys(sides).map(sideName => {
return {
name: sideName,
children: sides[sideName].map(community => {
return {
name: community.CommunityName,
size: communityData[community.CommunityArea].length
};
})
};
})
};
}
function groupByCommunity (data) {
const communityData = {};
data.map(d => {
const communityId = d['Community Area'];
if (!communityData[communityId]) {
communityData[communityId] = [];
}
communityData[communityId].push(d);
});
return communityData;
}
d3 = require("https://d3js.org/d3.v5.min.js")
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