EconoInteractive

 
   
   
   
     
 

Bringing the world of economics to life

 
   
     
     
     
 

Although most of the interactive features of our site are still in development, we thought we'd give you a preview of what you can expect from EconoStocks in the future.

 
   
     
     

CurveFit Demo (plots a regression line)


Click here to use the ActiveX control version of CurveFit.

Click here to use the Java applet version of CurveFit.

For reasons to use one or the other, see below.

Click to plot points. The curve-fit control will plot the least-squares regression line.
This is the line that best fits the data you have selected. If your data are not linear, the line may not be a good fit.

   
     
 

If you looked at CFActive.html, the CurveFit control you just viewed is a sample of the ActiveX technology we'll be using for some of our smaller demos. It will be integrated into an EconoMath tutorial on time-series analysis, the way economists try to find trends and predict (with varying degrees of success) how things will be in the future. This is one of the simplest methods of finding trends, called linear regression.
Note: you may have received a message telling you the control is unsigned and could potentially be unsafe. At this point we have not yet obtained an Authenticode security certificate, but the control does implement the standard COM safety interfaces. The control should not in any way damage your computer.
Why use ActiveX over Java? With a Java applet, you must wait for it to load every time you run it, whereas an ActiveX control downloads once and resides on your computer. Also, ActiveX is a core technology in the Windows operating system, and is quickly spreading to other systems now that Microsoft has turned the standard over to an international standards organization.

Why use Java over ActiveX? Although Java is at times less reliable, it is extremely portable and is installed on a large group of machines. Many users may have no access to ActiveX or may not wish to go to the trouble of installing it. Thus, we provide both Java and ActiveX.


Some of our future interactive features will include a stock market simulation using actual stock prices. You'll be able to tell us which stocks you'd like, and we'll keep track of how much (virtual) money you make, and show you how you stack up against other users of our site.

 
   
   
   
     
 

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To contact us:

 
   
   
   
     
 

Email: 16500@advanced.org