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 ...

charts the mean values of a variable for the categories of another variable creates side-by-side bar charts for the categories of a third variable draws reference lines across the charts.

This example produces a vertical bar chart. The chart statistic is the percentage for each category of the total number of shirts sold. The chart shows the percentage of total sales for each shirt ...

What an outstanding group of readers I have! Both the quality and the quantity of entries to the Graph Makeover Contest were amazing. There were 29 entries to the first part of the contest which ...

You won’t believe how easy it is to create animated bar charts in the R programming language to show rankings over time. Racing bar charts can be a useful way to visualize comparative data over time.

Charts are the most basic aspect of technical analysis. Chart is a graphical representation of the price action of an asset for analysis and decision making. It’s important for traders to understand ...