The final step is analysis. You can analyze a Pareto chart by identifying those items that appear to account for most of the difficulty. In the example below, the Institute for Healthcare ...

If your application involves classification effects, construct more than one Pareto chart for the data using various combinations of classification variables (this approach is illustrated in Example ...

In some situations, a count (frequency) is available for each category, or you can compress a large data set by creating a frequency variable for the categories before applying the PARETO procedure.