Frequency Plot Window

A frequency plot window displays an x/y-type plot of the selection frequency of every reaction step in a compartment, or every transfer step in a transfer path.

Frequency data are available for plotting only if you have enabled the Track selection frequency of each step feature on the Application Options Dialog. This option is automatically enabled for reaction schemes containing electrochemical steps.

This feature is not available for single reactor reaction schemes.

To create a frequency plot window:

  1. Single-click the right mouse button over a compartment or a transfer path in the scheme diagram of a compartmental scheme window or a three-dimensional scheme window.

    A context menu appears.

  2. From the context menu, select the Show Selection Frequency of Each Step menu item.

    A new frequency plot window is created in the main window:

When first created, the window displays a plot of the selection frequencies of each reaction step in the compartment or transfer step in the transfer path, plotted as a function of elapsed time and scaled so that all data points are visible. Each step is plotted with a different color and/or line style. The legend for the curves is positioned below the graph.

When the mouse cursor is moved over this graph, the cursor changes to a cross and displays its x,y coordinates in the axes' units.

Changing the Plot Scales

Two different mechanisms are available to change the scales and limits of the plot axes.

Zoom with the Mouse

You may select a region of the visible plot to be expanded using the mouse. You may zoom in repetitively in this way to view detail in the plotted data.

To zoom in to a region:

  1. Press and hold down the left mouse button at one corner of the region.
  2. While holding down the mouse button, move the mouse cursor to the the opposite corner of the region.

    A rubber band box bounds the region to be displayed.

  3. Release the mouse button. The graph is rescaled to show just the selected region.

Rescaling the Axes

You also may set the minimum and maximum limits of both scales by typing in precise numeric values.

To do a precision rescaling:

  1. Double-click the left mouse button over the title or labels of the axis you wish to rescale.
  2. A Change Scale Limits Dialog opens. Type the minimum and maximum values for the range you wish to display.
  3. Click OK. The dialog closes and the graph is rescaled to your specification.

Text View

You may display all the numeric data that comprises the current graphical view as a text-based table. You use the graphical view's context menu (see below) to switch to the text view.

The table may be exported to a text file.

Context Menus

Context menus for both the graphical and text views of this window are accessed by a single click of the right mouse button over the window.

The context menu of the graphical view provides the following actions:

Modify...
This action opens a dialog where you may change the visibility of lines, points and the scale grid.
Copy
When this menu item is selected, a bitmap image of the plot is placed on the system's clipboard. This image may be pasted into other applications.
Export to Image File...
When this menu item is selected, a File Save Dialog appears that allows you to save an image of the plot to a disk file. The image is saved in Portable Network Graphics (.png) format.
Show in Text Format
Selection of this menu item switches the window from graphical format to a tabular text format.
Zoom In
The menu item is enabled after you have used the mouse method to change scaling. This action zooms in to a previous scaled view.
Zoom Out
The menu item is enabled after you have used the mouse method to change scaling. This action zooms out to a previous scaled view.
Reset Zoom
The menu item is enabled after you have used the mouse method to change scaling. This action restores the initial scale.
Show All Data
This action resets both scales to ensure all data points are visible.

The context menu of the text view provides the following actions:

Export to Text File...
When this menu item is selected, a File Save Dialog appears that allows you to save the tabular text to a disk file.
Show in Graphical Format
Selection of this menu item switches the window from text format to graphical format.
Select All
This action selects all text for a pending Copy operation. You may select a portion of the table to copy by holding down the left mouse button while moving the mouse cursor over the text.
Copy
When this menu item is selected, a copy of any selected text is placed on the system's clipboard. This text may be pasted into other applications.
Zoom In
Selection of this menu item increases the font size of the text table.
Zoom Out
Selection of this menu item decreases the font size of the text table.