2.10 (023)

• Revisions to allow for support of Microsoft Vista.

2.09 (022)

• Revisions to allow for support of Excel 2007.
• Added Quartile method for Box-Whisker chart.
• Revised Moving Average charts to show first (w-1) subgroups in incomplete cells.
• Added support for European date formats on x-axis labels.

2.08 (021)

• Attribute data may be input as percent, proportion, or PPM, as well as count.
• Ability to filter Pareto chart to top x issues.

2.06 (019)

• Added options to Box-Whisker to display the points 1) within the box, 2) on the whiskers, 3) beyond the whiskers.

2.05 (018)

• Allowed control limit regions (in stepped control limits) to be based on user-specified subgroups.
• Improved X-axis scaling options.

2.04 (017)

• Added run tests for Attribute Charts.

2.03 (016)

• Added the ability to open QDB and QDC files from SPC-PC IV within SPC IV Excel.
• Added the ability to set the subgroup size to 1 for Moving Average and Range/Sigma charts.
• Added right click functionality to print charts.

2.0 (013)

• Added the Auto Drop feature for Attribute Charts.
• Added the ability to set confidence levels for Scatter Diagrams.
• Added k-s statistics, % out of spec, and Sigma level to the Process Capability Analysis and the Advanced Chart Statistics.
• Added Gage R & R Charts.
• Added Normal Probability Charts.
• Added the ability to customize the y-Axis labels.
• Added the ability to put annotations on the chart.
• Added the ability to fix the control limits for the Johnson Curve fits for existing charts.

1.93 (012)

• Store the Run Test settings as defaults for charts created at another time.

1.92 (011)

• Increased the number of decimal places that can be used.

1.91 (010)

• Add Auto-Refresh.
• Add the ability for the Run Chart to show either the Median or the Average.
• Add the ability to overlay multiple Run Charts on top of each other.
• Add the ability to store which Run Tests are ON or OFF in the registry so that the next time the wizard is run the same ON or OFF settings will be used.

1.8 (008)

• Add option to specify one of three y-Axis units available for the P-Chart: Proportion, Percent and PPM.
• Add the option to completely eliminate the histogram bars in the Process Capability Chart. In Format page, Show Histogram Cells may be de-selected.
• Add the ability to set the font and text color of the labels (x and y axis). Save this setting in the registry so it'll be used for all new charts that are generated.
• Add the ability to format chart via colors: background, display, and curve colors.
• Add sample files in the Greenbelt Utility (for fishbone, matrix, etc.).
• Add the ability to have a grid displayed onto the Display area of the chart. The grid lines are located where the x and y axis tic marks are shown.

1.7 (007)

• Extend the user definitions of the control limits so they can be based on a user-defined Mean and Sigma for a region.
• Add the ability to zoom in and out on the charts data points. To zoom in, select the range of data points to view then right mouse click the zoom in menu item.
• Add Upper and Lower Bounds for the Johnson curve fit.
• Rescale the skewness and kurtosis calculations.
• Add the ability to show Sigma Lines (Zone lines).

1.6 (004)

• Add the Repeatability and Reproducibility charts (Green Belt XL only).
• Add the following charts: Priority Matrix, Matrix Diagram, Fishbone Diagram, Tree Diagram (Green Belt XL only).
• Allow user to use the first row for column headers. When the entire column/row is selected for the Data Range the program should skip the first row(s)/column(s) until the first numerical value is found.
• Reorder the charts in Step 1.
• On an Individual-X chart allow the Moving Range chart to be turned off.

1.5 (003)

• Add a feature to convert chart into a JPEG image (for viewing on webpage or for other distribution).
• When using a variable sample size for an attribute chart, allow sample size column to be anywhere in the spreadsheet.
• Add y-Axis scaling.
• Add x-axis tic labelling.
• Store the last used chart settings in the registry. When creating a new chart, use the the stored settings as the default.
• Add the ability to show the USL, LSL and Target lines on charts (when appropriate).
• Add Stepped control limits. Each region can either have the control limits calculated or fixed.
• Add a formatting feature for setting the color of the Histogram.
• Allow the user to specify the number of histogram cells to be shown for the Process Capability Chart.

1.1 (002)

• Add the ability to change the number of decimal places displayed on the charts.
• Allow the Data Range to be selected by selecting cells from the spreadsheet.

1.0 (001)