Each crime report contains latitude and longitude coordinates.  I used ruby to parse out each coordinate from this source :  https://data.cityofchicago.org.  Then I appended those points into a heat map.

Update: This dataset has been expanded on, in this post DataViz: Visualizing Chicago Narcotics Crime Data.

Chicago DECEPTIVE PRACTICE – 8/8/2012 to 8/8/2013

Chicago ALL CRIMES – 8/8/2012 to 8/8/2013

Chicago NARCOTICS – 8/8/2012 to 8/8/2013

Chicago HOMICIDE – 8/8/2012 to 8/8/2013

Ruby example to parse all coordinates for Primary Crime Type: DECEPTIVE PRACTICE

Output

Recently I decided to visualize some of Chicago’s Crime Data.  I used ruby to parse and manicure it into JSON, and Google Charts to display it.

The Data is from : https://data.cityofchicago.org/

Google Charts API : https://developers.google.com/chart/

The data was saved in CSV format on my local C: Drive
Local Path : C:\ChicagoCrime\CHICAGOCRIME.csv
Data chosen ranges from 8/8/2012 to 8/8/2013

Ruby Code used to create the JSON

JSON Output

Column Chart Created