Column graphs offer a visual representation of data that allows easy comparison between multiple values. Typically, these columns are uniformly spaced, but there are times you will need to group ...

One of the advantages of using Excel as your spreadsheet application is that you can display a simple piece of information just as effectively as a complicated collection of data. For instance, you ...

For the past few years, I've been trying to understand how to make graphs using RRDtool (Round-Robin Database tool) after failing miserably to understand MRTG (Multi-Router Traffic Grapher) before ...

Computer scientists are abuzz over a fast new algorithm for solving one of the central problems in the field. (January 15, 2017, update: On January 4, Babai retracted his claim that the new algorithm ...

Thanks to their visual simplicity, bar graphs are popular tools for representing data. But do we really understand how to read them? New research has found that bar graphs are frequently misunderstood ...