Date and Time Chart
Date and Time Charts are a very powerful form of analysis that have many applications in the fields of quality control, fraud, traffic analysis etc.
Basically, by splitting a database by say 'Day of the Week' and 'Hour of the Day' a pattern often emerges that gets to the heart of the problems or strengths of the data.
Date and Time Charts are a special form of Daisy Chart where the following conditions have been applied :-

To see how a full size Date and Time Chart looks and works open one of the examples, such as 'Telephone Calls'.
Other chart types possible with Daisy are :-