Pareto charts are used by quality engineers to visually display a set of causes that produce defects in a manufacturing process. The chart is based on the famous Pareto Principle (the 80/20 rule), which states that 20% of the causes often produce 80% of the defects. If you focus on
When you have a data matrix, the rows represent observations and the columns represent variables. If you sort the matrix by one or more columns, the sorting occurs in a way that preserves the elements within rows. Although the rows of the sorted matrix are permuted by the sort, the
A Pareto chart is a popular chart for statistical quality control. It is often used to display the relative frequencies of issues that affect the quality of a manufacturing process. A bar chart displays the frequency of each issue that causes a defect. The bars are ordered by height: the
