15. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform a method, the method comprising: receiving a markup document, the markup document containing a number of line items, each line item representing a series of numerical values and characteristics common to the series of numerical values; displaying contents of at least one line item of the number of line items of the markup document, wherein the contents are simultaneously displayed in a chart view and in a tree view, wherein the chart view displays the contents in a graph; receiving a selection in the tree view of a different line item than the at least one line item, the different line item also being one of the number of line items; and automatically reconstructing the graph based on the series of numerical values and characteristics common to the series of numerical values in the different line item.
15. A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform a method, the method comprising: receiving a markup document, the markup document containing a number of line items, each line item representing a series of numerical values and characteristics common to the series of numerical values; displaying contents of at least one line item of the number of line items of the markup document, wherein the contents are simultaneously displayed in a chart view and in a tree view, wherein the chart view displays the contents in a graph; receiving a selection in the tree view of a different line item than the at least one line item, the different line item also being one of the number of line items; and automatically reconstructing the graph based on the series of numerical values and characteristics common to the series of numerical values in the different line item. 16. The non-transitory computer-readable medium of claim 15 , wherein the method further comprises automatically graphing a line item in the chart view in response to a selection of a corresponding line item in the tree view.