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New Features in SigmaPlot Version 14
Below are some of the many new features in SigmaPlot Version 14:
New Graph Features
 Arrows with solid arrowheads
 Added a right mouse menu command for pasting copied graph primitives (arrow, box, etc.) on the page
 A common operation on a graph is to zoom in, make a modification and then zoom out. A toggle was added, Ctrl+3, between your current zoom level and 100%.
 Data sampling dropdown now shows the maximum number of rows in the column
 Minitoolbars for left mouse selection may be turned off
 An Antialiasing button has been added to the Graph Page Tab, Format Group
 Improved user interface for the Color Schemes dialog
 The ¡°Each Curve¡± option is automatically turned on when performing a linear regression on one plot
 Additional Plot Regression Statistics
 Improved access to result graphs following statistical analysis – obtained by right clicking either a statistical report or another result graph
 The scatter matrix graph, used to display results of some statistical tests such as correlation, has increased support from 10 variables previously up to 40 variables
 Graph Properties can now be obtained by right clicking a graph or plot
 Renamed the Linear Regression command in the Graph Analysis group of the Analysis tab to Plot Regression
 Text and special symbols options are now shown directly on the symbols dialog
 The Graph Additions Group Name has been changed to Manage Plots
 Multiple Result Graph Types May Now Be Simultaneously Selected from the Create Result Graph Dialog
 The default appearance of all Result Graphs has been improved
 Added TIFF gray scale export option for graphs and graph pages
 A Page Templates button has been added to the Format group of the Graph Page ribbon tab
New Worksheet Features
 Sorting data in the worksheet now supports multiple key columns
 Coefficient of Variation and 90% Confidence Interval added to Column Statistics
 Formatted text can now be used in statistical analyses
 Custom Column Statistics Items and Order May Now be Specified
 Statistical procedures may now use data from over 4000 worksheet columns
New Analysis Features
 The OneWay Frequency Tables method has been added
 The unpaired (aka 2independent samples) ttest has been enhanced to provide options to test the equality of the populations means of the two groups without assuming equal variances (Welch¡¯s ttest)
 CtrlA now selects all program lines in user defined transforms
 More nonlinear regression application examples have been added that can now be accessed from the Help menu
 Improvements to the transforms examples that can now be accessed from the Help menu
 Improvements to some ape (automatic parameter estimate) functions in the Transform Language
 The number of groups for computing dummy variables has been extended from 100 to 1000
 Increased the maximum character length of labels in statistical tables from 30 to 255
 Error Message and Partial Save Nonlinear Regression Improvements
 The UserDefined Transform and Regression Dialogs are Now Resizable and can be Saved
 Improved User Interface for the Quick Transforms dialog
New Miscellaneous Features
 Unicode is now supported
 Automatic Updating is available within SigmaPlot to get the latest updates to features
 User settings are now preserved for new versions of SigmaPlot
 Added new ribbon layouts for different types of workflows
 The Export button is also on the Main button
 New Macro Method for Exporting any Graph Page Selection
 Added a Save All command to the Main Button
 Two New Macros Using Indexed Data for Graphing
 Sample Data Sets Available from Help
 New Macro Automation Method to Determine a Worksheet Column Length
 Added File Import and Import Database to the Main Button panel for more visible access
 Data Can Now be Extracted from a Result Graph
Graph Features
Arrows with Solid Arrowheads
The solid arrowhead is much more aesthetic than an arrowhead consisting of intersecting lines.
Right Mouse Graph Primitive Paste
A graph primitive object can now be both copied and pasted from the right click menu. This saves editing steps. These objects include the graph, boxes, circles, arrows, lines and text.
Toggle between Zoom Levels
One of the goals of this release is to make some procedures simpler. This is one of them. You frequently zoom in to make fine modifications but then you want to zoom out to see the overall effect. A toggle Ctrl+3 has been added. It will toggle between your current zoom level and 100% enabling you to easily make the changes and then see the result.
Data sampling dropdown now shows the maximum number of rows in the column
Data sampling in Graph Properties allows you to select the ¡°from, to, by¡± rows for your graph. It also shows a sampling of the data rows but not every row and, in particular, not necessarily the last row. The ¡°to¡± label now shows the numerical length of the column. This is a small feature but may help the user by catching a misselected column and also help you select the ¡°by¡± number of rows.
Turn Off Left Mouse Selection Minitoolbars
Some users only want right mouse selection minitoolbars. The Main Button, Options, Page has a new checkbox: ¡°Show mini toolbars on selection¡±. If you turn this off, mini toolbars will not appear when you select (left mouse) an object on the Page, but will still appear if you right click.
New Antialiasing Button
Use of antialiasing will smooth lines on your graph. This presently exists but was somewhat hidden under a right click on the page. This new button on the ribbon makes the feature obvious.
Improved User Interface for the Color Schemes Dialog
An unnecessary mouse click was removed. The color scheme dialog is displayed immediately. This feature and the next are examples of removing unnecessary mouse clicks.
¡°Each Curve¡± Option is Automatically Turned on when Performing a Linear Regression on One Plot
It is enabled in the Plot Regression dialog. This saves one step for a commonly used procedure.
Additional Plot Regression Statistics
More statistics have been added to the results in the Plot Regression dialog that is used for polynomial fitting to graph data. The statistics include the model performance measures R2, Adjusted R2, Standard Error of the Estimate and the Akaike Information Criterion. These are in addition to the standard errors for parameters and confidence intervals for the parameters. A control has also been added to change the number of results decimal places.
Improved Access to Result Graphs Following Statistical Analysis
Result graphs following a statistical analysis can now be obtained by right clicking either a statistical report or the page outside another result graph as shown below.
Scatter Matrix Graph Dimension is Increased to 40 Variables
The scatter matrix result graphs have increased support to a maximum of 40 variables:
Graph Properties Can Now Be Obtained by Right Clicking a Graph or Plot
The Graph Properties panel can be obtained from the Home tab or by double clicking a graph or plot on a graph. To make this even more visible, Graph Properties can now be obtained by right clicking on a graph or plot.
Renamed Linear Regression command in the Graph Analysis group of the Analysis tab to Plot Regression
This is to emphasize that this regression is obtained from a plot on a graph and not from the worksheet. The name change is also made to the dialog and tool tip text.
Text and Special Symbols Options are Now Shown Directly on the Symbols Dialog
A Symbol Font button has been added to the Symbols dialog. This makes it easier to change the font and visualize directly what it will look like on the graph. A Special Symbols button has been added which contains 120 addition symbols.
The Graph Additions Group Name Has Been Changed to Manage Plots
For clarity, the name of the Graph Additions panel on the Graph Page tab has been changed to Manage Plots since this is what these functions do.
Multiple Result Graph Types May Now be Simultaneously Selected from the Create Result Graph Dialog
Multiple Result Graph types may be selected using the mouse left click. This enables the user to perform in one step what before required multiple dialog openings. The keyboard behavior of selecting one graph using the arrow keys has not changed.
The Default Appearance of Result Graphs Improved
The default Result Graph appearance has been improved by modifying graph attributes that include axis line thickness, tick mark thickness, plot line thickness and color schemes for lines, line styles, symbol size and symbol edge thickness. The various line thicknesses and color schemes have been set to visually pleasing values.
Gray Scale TIFF Option Added
A Gray Scale option has been added to TIFF RGB export (compressed or not).
Added a Page Templates Button on the Graph Page Ribbon Tab
Page templates are more easily accessible from the ribbon with a Templates button in the Format group of the Graph Page tab.
Worksheet Features
Sorting Data in the Worksheet Now Supports Multiple Key Columns
Use the Sort feature from the Worksheet tab Edit group to sort using multiple key columns.
Coefficient of Variation and 90% Confidence Interval added to Column Statistics
Use the Worksheet tab and View group to select View Column Statistics (or press F6). The image below shows the addition of % CV and 90% Confidence.
Formatted Text Can Now be Used in Statistical Analyses
Three formatted ¡°a¡±s and three formatted ¡°b¡±s are entered into a worksheet to identify groups for a statistical test. The small square in the upper right corner of the worksheet indicates that that text is formatted. Then, in the example below, the formatted text in the graph is increased in size. SigmaPlot now recognizes formatted text for statistical tests as it did in the past for plain text. A graph using these two groups and the ttest report are shown below:
Custom Column Statistics Items and Order May Now Be Specified
Specific Column Statistics items may now be selected and their order specified. Do this from the Main button, Options, Worksheet tab, Statistics when a Column Statistics worksheet is the current window. The two list box interface is shown below:
Analysis Features
OneWay Frequency Tables Method
The oneway frequency tables method is new. It is applicable to multiple worksheet columns. It computes the number of times independent variable values occur.
Enhancement of the Unpaired Ttest
The unpaired (aka 2independent samples) ttest has been enhanced to provide the option to test the equality of the population means of the two groups without assuming equal variances (Welch¡¯s ttest).
Improved Ttest Reports
The option of selecting Pvalues from either a twotailed or a onetailed ttest has been added. This simplifies the appearance of the report giving the most useful results. Text has been added to explain the possible use of Welch¡¯s test: ¡°Use the results of Welch¡¯s test, where equal variances are not assumed, if the equality of the population variances of the two groups is in doubt.¡±
More Nonlinear Regression Application Examples Added to Nonlin.jnb
Nonlinear regression examples are found in Help, SigmaPlot Samples and Nonlinear Regression. The file is located in the Samples subfolder of the user¡¯s profile folder.
Improvements to the Transforms Examples Xfms.jnb
Several new transforms have been added with example worksheets and graphs. In SigmaPlot 13, this file contained 25 transforms. Some of these have been removed because a corresponding macro gives better results, but several more were added, with descriptions, worksheets and graphs so that this file now contains 55 transforms. Also, this file is now copied to the user profile folder during installation and is accessible from the Help menu in SigmaPlot (Help, SigmaPlot Samples and Transforms).
Improvements to Some Automatic Parameter Estimation Functions in the Transform Language
APE functions are used by SigmaPlot¡¯s nonlinear regression feature. They determine good starting values for the fitting function¡¯s parameters. The ape functions for polynomial and rational polynomial functions have been improved to avoid illconditioned or singular solution for the parameter estimates. Also, for power users, the ape function and the polynomial function used together in a userdefined transform provide a quick way of doing Polynomial Regression.
Number of Groups for Dummy Variables has been Extended From 100 to 1000
This is for users who want to use dummy variables for coding categorical variables for specific procedures in SigmaPlot¡¯s statistics, like logarithmic regression, or covariates for Cox regression and ANCOVA. The advanced user can also use them to extend SigmaPlot¡¯s multifactor ANOVA by again converting the categorical variables to dummy variables and using multilinear regression (GLM). As an example of the number of dummy variables required, a 5x5x5 3Way ANOVA requires 124 dummy variables to describe it as a regression model, which is done internally in SigmaPlot. The dummy variable interface has been used with multilinear regression to verify examples of SigmaPlot¡¯s ANOVA results, but this could not have been done for the ANOVA design above in the previous version of SigmaPlot since the old limit was 100 dummy variables.
Error Message and Partial Save Nonlinear Regression Improvements
Increased the types of nonlinear regression error messages reported when using the Function Edit dialog to create fit equations. The ability to save partially complete equations so that the user can return to them later for completion has been added.
Improved the Histogram and Polynomial Transform Language Functions and the Exponential Operator to Handle the nth Root of Negative Numbers
The Transform Language function histogram was modified to add an optional third argument whose default value is zero. If the value of this argument is zero, the function behaves as before, assigning data to a bucket whose value equals the bucket¡¯s right edge. If the value of the argument is not zero, then data is assigned to a bucket if its value equals its left edge instead. The behavior with a nonzero argument is more conventional. The Transform Language function polynomial was modified to replace its method for evaluation to use the Horner algorithm which is faster and more accurate. Also increased the maximum degree of the polynomial you can evaluate to 1000.
Added the ability to compute nth roots of negative numbers when n is an odd integer
Before, this resulted in missing values. So, for example, (8)^(1/3) or (8)**(1/3) should now yield 2. Also, if you were to graph the equation y=x^(1/3) for negative values of x before this change, you would get nothing.
UserDefined Transform and Regression Dialogs are Now Resizable
The UserDefined transform dialog for defining transforms and the Function Edit dialog for defining regression models can now be resized and have their new sizes saved between sessions of SigmaPlot. This makes them more convenient to use by preventing frequent scrolling to make editing changes.
Improved User Interface for the Quick Transforms Dialog
Two Quick Transforms windows have been combined making the combined window much easier to handle. Additional transform functions were also added as buttons: median, nth, avg, choose, rgbcolor, runavg, fft, invfft, normdist, norminv, tdist, tinv, fdist and finv. Also, the constants ¡°¥ð¡° and ¡°e¡± were added.
Miscellaneous Features
Using Unicode Characters in the Worksheet on the Graph Page and in Reports
Here is an example of Unicode Russian characters in the graph:
User Settings are now Preserved for New Versions of SigmaPlot
Every change that the user makes in SigmaPlot is saved as a setting (saved in the spwUserSettings.ini file). From SigmaPlot 14 on, a new version of SigmaPlot will use the previous file of settings so that the user will ¡°see¡± SigmaPlot exactly as it was before.
New Ribbon Layouts for Different Types of Workflows
There are now four different ribbon layouts for users that have specific uses:
 Default
 Compact
 Graphing
 Analysis
A good example of using the new configurations to speed up the workflow is in the Compact configuration. Here, the Worksheet tab has both worksheet and analysis commands and the Graph tab has both graph creating and editing commands. This shows the power of the new configurations as it saves a lot of switching back and forth between tabs.
Worksheet Tab
Graph Tab
Export Button is now also on the Main Button
The user can use the Main button and not repeatedly return to the Home tab to export.
New Macro Method for Exporting any Graph Page Selection
A new macro method has been added for the Auto Graph Item data type called ExportGraph and is used to export any selection on a graph page to a file. The method has seven arguments. From left to right, the arguments are filename, image file format and dpi, color resolution in bits, selection flag, height and width. This is used for both writing macros and in macro recording when running the Graph Export Dialog.
Added a Save All command to the Main Button
You can now save all open notebooks with one click.
Two New Macros Using Indexed Data for Graphing
Two new macros have been added to Macro Data Sets.jnb and SigmaPlot Macro Library.jnb. These macros (Box Plot, Using Indexed Data, Error Bar Plots Using Indexed Data) show how indexed data is used in graphing, expanding what SigmaStat does in result graphs.
Sample Data Sets Available from Help
Help now has a SigmaPlot Samples item from which sample data sets can be opened. Notebooks for Graphs, Statistical Tests, Macro Data Sets, Transforms and Nonlinear Regression are available.
New Macro Automation Method to Determine a Worksheet Column Length
A new automation method has been added on the automation DataTable object given by long ColumnLength (long col). This method finds the length of a column defined from the first row to the last nonempty row. A return value of zero shows that the column is empty.
Data Can Now be Extracted from a Result Graph More Easily
Data for a Result Graph is contained internally and not in a worksheet. You can now extract the data from a Result Graph by selecting the Data button in the Navigate group of the Home tab. A Result Graph must be in focus. The tooltip for the Data button will say ¡°View Graph Data.¡± A new section will be created with a worksheet containing the data. This allows extracting the data for a Result Graph and placing it into a worksheet.
