OSI recently won a $1.6 million contract to supply six ECPINS systems to the Canadian Hydrographic Service as part of what is reportedly the world's largest electronic chart plot project.

Different chart types emphasize different aspects of the data. I show a simple data set and plot it three simple ways to show that each emphasizes a different message. All use bar charts. The data ...

One of my earliest posts was Thinking Outside the Chart Menu. In it I mentioned that while menus and chart-choosers might be very useful to novices at graphing data, there were three things worth ...