How to use Elliott Wave Calculator 1. This system can be used for both intraday and positional trading. 2. To use this system, you must enter the high, low and close for the time frame, you want to trade. 3. If you want to trade for a time period of one week, take the high,low and close of the last 5 days. 4. If you want to trade for a time period of one month, take the high, low and close of the last 30 days. 5. Similarly for one year. 6. In all above cases you take the closing price as closing