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Owning Palette: Pareto Analysis VIs

Installed With: Statistical Process Control Toolkit

Given an unsorted list of causes and the number of occurrences for each cause, sorts the list from the cause with the largest number of occurrences to the smallest and computes Pareto statistics for each cause.

The Pareto Counter VI accepts two alternative inputs. You can pass in either an unsorted list of causes (an array of strings) or an array of clusters with each cluster containing a cause string and the corresponding total number of occurrences of that cause. If you use numeric cause codes instead of strings, use the Cause Code Lookup VI to count the number of occurrences of cause codes and generate a list of cause strings with the count for each cause to be passed to the Pareto Counter VI. If no cause string is given for a cause code, the code itself is put in string form.

	causes is an array containing an entry for each occurrence of a cause.
	causes with count specifies the number of occurrences for each cause counted. If the causes input is empty, the Pareto values are calculated from the causes with count input. The causes with count array has the number of occurrences for each cause counted. If the causes input is empty, the Pareto values are calculated from the causes with count input. frequency is the number of occurrences of cause. cause is the name of the assigned cause.
	pareto values returns an array of clusters. cause returns the name of cause. frequency returns the number of occurrences of the cause. cumulative frequency returns the total number of occurrences at the time this value was read. percent of total returns the percent contribution of the cause. cumulative percent of total returns the total of percentages at the time this value was read, sorted by frequency of occurrence of each cause.
	total # of occurrences returns the total number of occurrences of all causes.