A reader need go no further than page two of Leland Wilkinson’s The Grammar of Graphics before reading, “We will also come to realize why a histogram is not a bar chart and why many other graphics ...

When you open Excel and start working with data, you might wonder how to visualize the distribution of your data points. This is where a Histogram Chart comes into play. A Histogram Chart is a type of ...

Bar Chart: a chart with horizontal bars that show frequencies or percentages for the categories. It is a graphical equivalent of a summary table. Chartjunk: a chart that has unnecessary details. It ...

In geography it is important to be able to read and understand data that is presented in a range of different ways. We often use graphs to present data in a clear and accessible way. There are many ...