When candles are loaded into the store, it automatically adds in derived properties for each candle such as the high-low range. These are available when you read data back from the store, using
The derived candle properties which are added by the store are as follows:
| Description | |
| range | High minus low |
| median | Average of high and low |
| typical | "Typical" price: (high + low + close) / 3 |
| weighted | "Weighted" price: (high + low + close + close) / 4 |
| ohlc4 | Average of open + high + low + close |
| change | Close minus open |
| abschange | Absolute value of change; converted from negative to positive where applicable |