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Using SQL API to create graph
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Car accidents per person by neighborhood</title> | |
| <script src="http://www.chartjs.org/assets/Chart.js"></script> | |
| <meta name = "viewport" content = "initial-scale = 1, user-scalable = no"> | |
| <script src="http://libs.cartocdn.com/cartodb.js/v3/cartodb.js"></script> | |
| <style> | |
| canvas { | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="canvas" height="500px" width="1000"></canvas> | |
| <script> | |
| var sql = cartodb.SQL({ user: 'andye' }); | |
| sql.execute("SELECT nbrhd_name, (SELECT count(*) FROM traffic_accidents WHERE ST_Intersects (traffic_accidents.the_geom, census_neighborhood_demographics_2010.the_geom)) / population AS accidents_per_capita FROM census_neighborhood_demographics_2010 ORDER BY nbrhd_name ASC") | |
| .done(function(data) { | |
| console.log(data); | |
| var total = []; | |
| var labels = []; | |
| for (i in data.rows) { | |
| total.push(data.rows[i].accidents_per_capita); | |
| labels.push(data.rows[i].nbrhd_name); | |
| } | |
| console.log(data); | |
| var lineChartData = { | |
| labels : labels, | |
| datasets : [ | |
| { | |
| fillColor : "rgba(151,187,205,0.5)", | |
| strokeColor : "rgba(151,187,205,1)", | |
| pointColor : "rgba(151,187,205,1)", | |
| pointStrokeColor : "#fff", | |
| data : total | |
| } | |
| ] | |
| } | |
| var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Bar(lineChartData); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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