Variable Statistics Summary

This ASP application displays detailed statistical analysis of a selected variable for one or more products. The following parameters are required:

  • The start and end time

  • The variable

  • The product(s)

  • The basis product

The basis product is the product that you use the specs from to calculate the theoretical limits. Data for the analysis will include data from all the products but the theoretical limit calculations will be based off the basis product.

Variable Statistics Summary Report

For the selected variable, the report provides the following charts:

Control Summary

The chart shows the percentage of values at the various specifications limits. Pause on the various bars to view the percentage.

Run Analysis

This chart is a graphical representation of the Statistics Summary and shows the minimum value, the maximum value and the average for the selected time period. The time stamp is the most recent production run after the specified start time.

Process Capability

This histogram shows the number of occurrences of a value. A normal curve based on the actual limits is overlaid as a reference.

Product Capability

This histogram shows the number of occurrences of a value. A normal curve based on theoretical limits is overlaid as a reference.

Control Chart

This chart plots the values over the specified time period.

Cusum Analysis

This chart plots the cumulative deviation from the mean. The cusum line is on top of the actual values.

Trend

This chart plots values against the specification limits, which are indicated by a dashed line.

Criteria Summary

This chart is a summary of the criteria used to create the report.

Products Analyzed

This chart lists the products analyzed on the report.

See Also: