Cost Representation Techniques Conversion Application
Introduction
This application demonstrates an alternative cost representation technique by converting ROC curves to an alternate representation.
To start this application in applet mode, click on the button below.
Instructions
Converting curves
- Enter the points forming your curve in the text box labelled ROC Points, either by typing or pasting them.
- Select a color for the plot in the color choice box.
- Click on the Add Plot button. The ROC plot and its alternate representation equivalent are displayed on the graphs.
Input format
Plots are to be entered in gnuplot format. This means:
- There must be exactly two coordinates per line, although empty lines are permissible (they are ignored.)
- On a line which contains coordinates, the first is the x-coordinate, the second is the y-coordinate.
- Coordinates must be separated by at least one space or tab, but cannot be separated by commas or other characters.
- Each coordinate pair must be on its own line.
- Spaces/tabs before the x-coordinate or after the y-coordinate is permissible.
Converting an alternate representation plot to gnuplot format
- EITHER: In the Alternate Plots list box, click on the plot you want displayed in gnuplot format.
OR: In the ROC Plots list box, click on the ROC plot corresponding to the alternate plot you want displaeyd in gnuplot format.
- The selected plot will appear in the Alternate Points text box.
Removing a plot
- In the Alternate Plots or the ROC Plots list box, click on the plot you want to remove.
- Click on the Remove Plot button. The selected plots will be removed from the graphs and the list boxes.
Clearing the graphs
- Simply click on the Clear Graphs button.
Pasting data into the ROC points text box
- Using your mouse, select the position at which you want the text to be inserted.
- Use the right or middle button of your mouse to make the pop-up menu appear.
- Select the paste option.
This functionality may not be available on all platforms (Microsoft Internet Explorer 5.0, among others, does not allow it.)
It is also impossible to paste data to the Alternate Points text box.
Copying/cutting data from the ROC points or Alternate points text boxes
- Using your mouse, select the text you want to copy.
- Use the right or middle button of your mouse to make the pop-up menu appear.
- Select the copy option.
This functionality may not be available on all platforms (Microsoft Internet Explorer 5.0, among others, does not allow it.)
It is also impossible to cut data from the Alternate Points text box.
Opening a file in the ROC Points text area
- Click on the Open button
- EITHER: Type the path and file name of the file whose contents you want to display in the ROC points text box.
OR: Click on the browse button and select the file using the dialog that appears.
- Select whether you want the file contents to overwrite what is currently in the text box or be appended to it.
- Click on the Open button. The contents of the file appear in the ROC Points text box.
This functionality is not available if the application is run in applet mode.
Saving the contents of the alternate points area
- In the alternate plots list box, click on the plot you want displayed in gnuplot format.
OR: In the ROC Plots list box, click on the ROC plot corresponding to the alternate plot you want displayed in gnuplot format.
- Click on the Save button.
- Choose the directory and the name of the file whose contents will be the points forming the alternate representation plot.
- Click on the Save button.
This functionality is not available if the application is run in applet mode.
Changing the size of a graph
- In the text box above the graph whose size you want to modify, type a new zooming factor.
- Click on the apply button located above the graph you want to modify.
Zooming factors must be real numbers greater than or equal to 0. The larger the zooming factor, the larger the graph.
Last modified: 2000-08-24, 17:53 ADT
Maintained by: Mathieu Petitpas (u1369600@site.uottawa.ca)