Learn about six of the best ways to display data with multiple variables, such as scatter plots, bar charts, line charts, pie charts, heat maps, and box plots.

Learn how to plot coordinates and create straight line graphs to show the relationship between two variables. Also, plot graphs that contain a negative coefficient of x.

This post recommends using Trellis plots instead of 3D bar charts for three-dimensional (three variable) data. In Winner of the Bad Graph Contest Announced, I promised to present alternatives to ...

Learn how to make everything from basic line graphs to racing bar charts — all interactive and easily animated — with the echarts4r R package.

A line graph connects individual data points that reflect numerical values. It is used to visualize the relationship between dependent and independent variables.