Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="https://cdn.mxpnl.com/libs/mixpanel-platform/css/reset.css">
<link rel="stylesheet" type="text/css" href="https://cdn.mxpnl.com/libs/mixpanel-platform/build/mixpanel-platform.v0.latest.min.css">
<script src="https://cdn.mxpnl.com/libs/mixpanel-platform/build/mixpanel-platform.v0.latest.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> <!-- Add this line -->
</head>
<body class="mixpanel-platform-body">
<div class="mixpanel-platform-section">
<div id="eventSelect"></div>
</div>
<script>
var eventsArray = ['Signup'];
var nodesMap = {}, nodesArray = []; // stores our node data
var linksMap = {}, linksArray = []; // stores our link data
var eventSelect = $('#eventSelect').MPEventSelect();
var runQuery = function(events) {
console.log('Making a funnel query with events:', events);
// Call the funnel endpoint passing events
// If events is ['A', 'B', 'C'], this is equivalent to calling
// MP.api.funnel('A', 'B', 'C') ...
MP.api.funnel.apply(MP.api, events).done(function(funnelData) {
// Sum step counts
var steps = _.map(funnelData, function(step) {
return {
event: _.first(_.values(step)).event,
count: _.sum(_.pluck(step, 'count'))
};
});
// Add nodes
_.each(steps, function(step, i) {
step = _.clone(step); // copy step so that it isn't modified
var event = step.event;
var count = step.count;
if (_.has(nodesMap, event)) { // if the node already exists check its count
// Each node's count should be the max value it has in any funnel
nodesMap[event].count = _.max([nodesMap[event].count, count]);
} else if (count) { // otherwise create node if it has a non-zero count
// add the new node to our data structures
nodesMap[event] = step;
nodesArray.push(step);
}
});
// Add links
_.each(steps, function(step, i) {
var nextStep = steps[i + 1];
// Only create a link if nextStep exists and has a non-zero count
if (nextStep && nextStep.count && _.has(nodesMap, nextStep.event)) {
// Only create a link if one doesn't exist for these two events yet
if (!_.has(linksMap, step.event + '-' + nextStep.event)) {
var link = {
// link target and source values are set as corresponding nodes
source: nodesMap[step.event],
target: nodesMap[nextStep.event],
count: nextStep.count // link count is the target node count
};
// add the new link to our data structures
linksMap[step.event + '-' + nextStep.event] = link;
linksArray.push(link);
}
}
});
console.log('Nodes:');
console.log(nodesArray);
console.log('Links:');
console.log(linksArray);
});
};
// Do an initial query to render the first event node
runQuery(eventsArray);
// When the event select changes, re-query
eventSelect.on('change', function() {
var event = eventSelect.MPEventSelect('value');
// Only add events that we aren't already querying on
if (!_.contains(eventsArray, event)) {
eventsArray.push(event); // add the new event to our events array
runQuery(eventsArray);
}
});
var width = 960; // SVG element width
var height = 640; // SVG element height
var svg = d3.select('body').append('svg') // the SVG element
.attr('width', width)
.attr('height', height);
var linkElements = svg.selectAll('.link'); // the link elements
var nodeElements = svg.selectAll('.node'); // the node elements
var colorScale = d3.scale.category20(); // used with colorIndex to select a different color for each node
var countScale = d3.scale.linear().range([0, 40]); // maps our link widths to values from 0px to 40px
var strengthScale = d3.scale.linear().range([0, 1]); // maps our link strengths to values from 0 to 1
var colorIndex = 0; // incremented to select a different color for each node
var nodeIndex = 0; // incremented to be display a funnel step number in node labels
// The D3 Force Layout that calculates our node and link positions
// See https://github.com/mbostock/d3/wiki/Force-Layout for detailed documentation
var forceLayout = d3.layout.force()
.nodes(nodesArray) // link our node data with the layout
.links(linksArray) // link our link data with the layout
.size([width, height])
.charge(-120) // node repulsion/attraction - should always be negative
.linkDistance(300) // the distance nodes are placed from each other
.linkStrength(function(d) { return strengthScale(d.count); }) // set link strength based on count
.on('tick', function() { // a function that runs continuously to animate node and link positions
linkElements // update link positions
.attr('x1', function(d) { return d.source.x; })
.attr('y1', function(d) { return d.source.y; })
.attr('x2', function(d) { return d.target.x; })
.attr('y2', function(d) { return d.target.y; });
nodeElements // update node positions
.attr('cx', function(d) { return d.x; })
.attr('cy', function(d) { return d.y; });
});
</script>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment