TRENDABLE analyzes each column of data for which you specify a spec limit. By default, the report includes the following:

• A control chart — shows the variability in your sample values over time and detects potential problems.
• A capability graph — shows how the sample measurements compare to the specification limits.
• A table of statistics — shows common summary statistics, such as the mean, and common capability statistics, such as Ppk and Cpk.

Note: To change the default output for future reports, click the gear icon in the upper right and select Report Settings.

I-Chart

TRENDABLE displays an I-Chart of the measurement data if the data did not include subgroups.

If your process is running smoothly, the points should vary randomly about the center line. All points should be between the upper control limit (UCL) and the lower control limit (LCL). In addition, TRENDABLE performs several tests on your data to help identify potential problems. Points that fail any of these “tests for special causes” are indicated with a red square instead of a blue circle.

• Tip: TRENDABLE graphs are interactive. For example, hover your cursor near a point on the graph for additional details about that point. Take time to explore the many features of TRENDABLE graphs.

Each bar on the histogram indicates the number of sample values (y-axis) that fall within the indicated range of measurement values (x-axis).

• Note: The fitted curves and capability statistics assume that process output is distributed normally.

Table of Statistics

The statistics table includes summary statistics and capability statistics for your sample.

Save the Report to Microsoft Word

To save the full report for future reference, click Export to Word at the top of the report screen.

To save an individual graph, click the camera icon above the graph.