Pareto Plots
Pareto plots combine a bar plot and a line plot, and are used to quickly identify which metrics are most indicative of a quality control problem. Each bar in the plot represents a metric (see metric code below). Metric bars are ordered by decreasing incidence of outliers, where outliers are defined as the number of instances where each metric falls outside of the +/- 3 standard deviation range. The line shows the cumulative outliers by percentage.
There are separate pareto plots for each guide set and plot type (Levey-Jennings, Moving Range, CUSUMm, and CUSUMv) combination.
Other items to note in Pareto plots:
- Hover over dots in the line plot to show the cumulative %.
- Hover over a metric bar to show the number of outliers.
- Click a metric bar to see the relevant QC plot and guide set for that metric.
- Click on the PNG or PDF button (hover to reveal buttons in the upper left) to export the Pareto plot for that guide set.
Metric codes:
- FWB - Fill Width at Base
- FWHM - Fill Width at Half Maximum
- MA - Mass Accuracy
- PA - Peak Area
- P Area - Precursor Area
- RT - Retention Time
- T Area - Transition Area
- T/PA Ratio - Transition/Precursor Area Ratio
Related Topics
