Bradley Siderograph for Tradestation

The approach was introduced by Donald Bradley in 1948� in his book Stock Market Prediction — The Planetary Barometer and How to Use It”.

The indicator draws the Bradley indication (Geocentric orignal formular) in your TradeStation chart (tested with TS2000i and TS8).

The screen shot shows the Bradley Siderograph for the years 2007 and 2008 as green line on top of the German DAX. Please remember the tool is not so much a price prediction but a timing instrument.

� How to install:

• Download the Bradley Indicator for TradeStation ZIP (1.3MB) here
• Extract the DLL in your windows/system32 director (or in the Tradestation bin directory wherever it is)
• Import the Bradley.ELS in your TradeStation

� How to use:

• Insert the indicator [SOULY] Bradley
• The Bradley Siderograph is drawn in your chart window
• Make sure you add some space to the right of your chart (you probably want to see future turns)
• With the Expert Commentary tool you can click around and try to adjust the plot (still testing)
• The input onexone sets the strech-factor of the indicator (for the DAX in the example I took onexone=6
• Computable data range: 1994 to 2009 - so you have the chance for a lot of backtesting

Edit Feb 2010: The Planetary Indicator Package� contains indicators� to compute the Bradley without time limitations (for the last 100 years and the next 100 years if you want). So actually the ZIP here is obsolete.