Use the normalize function to operate on a previously saved X–Y data object (a collection of ordered pairs) to produce a new X–Y data object. This operation is analogous to normalizing a vector. The new X–Y data object has the same X-coordinate values as the original X–Y data object. ABAQUS/CAE computes the new Y-coordinates by dividing each original Y-coordinate by the root mean square (the square root of the sum of the squares) of all original Y-coordinate values.
Figure 29–13 illustrates the type of X–Y plot that can be produced by using the normalize function.
To normalize an X–Y data object:
Locate the Operate on XY Data dialog box.
From the main menu bar, select Tools
XY DataCreate. Click Operate on XY data in the dialog box that appears; then click Continue. The Operate on XY Data dialog box appears.
From the Operators listed, click normalize(X).
The normalize function appears in the expression window.
From the XY Data choices, click the name of the X–Y data object on which to operate and click Add to Expression. You can choose from all X–Y data objects previously saved within this session (listed alphabetically in the XY Data field).
The X–Y data object name appears within the normalize function parentheses in the expression window.
To continue to build your expression, position the cursor in the expression window and type in or select the functions, operators, and X–Y data you want to include.
To evaluate and display your expression, click Plot Expression.
To save your new X–Y data object, click Save As and then provide a name in the dialog box that appears.
Saving your data object makes it available for future operations within this session and for inclusion in X–Y plots containing multiple data objects.
When you are finished, click Cancel to close the dialog box.
