AI engineering glossary · NumPy pandas visualization
What is error bars?
Error bars (also called confidence bands): Lines drawn from a plotted point to show the uncertainty or variability of the value, such as a standard deviation or a confidence interval. Without them a chart of averages hides how reliable the averages are. The chart should state what the bars represent.
Error bars: an example
Bars of average test score for two teaching methods, each with a 95 percent confidence interval, show whether their difference could be chance.
Related terms
More NumPy pandas visualization terms
Where you learn it
Error bars is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.