User Interface for Data Comparison

Systems and methods perform comparison of data represented as charts, for example, bar graphs, pie charts, line charts or stacked bar charts. The charts present visual representations mapping source values to target values. A user can select charts associated with a data records for comparison from an index of data records. The user selects a chart and a particular source value from the reference chart. The target values corresponding to the source value from other charts are compared against the target value from the reference chart. An aggregate of the target values associated with the source value from each chart may be presented to the user. The user can also use multi-touch input to select object representing data and drag them to perform actions associated with the objects. The actions performed on the objects depend on the locations of the objects as the user drags them.