Below is a list of the functions, their syntax and a brief description about what they exactly do.
Price Volume Data
These are the parameters that you will use the most.
Additional Price and Costs
These parameters are generally used in setting the target, stoploss and trailing stop loss
Central Tendencies
Central tendencies are used genrally for mean-reverting strategies.
Can be used to set stop loss and targets. Give a recent movement of the prices/
Time movement
To be used when you want to retrieve older values of a particular parameter
Technical Indicators
One of the most commonly used operators. Note: Using just a technical indicator might not work most of the times. Combine it with some other parameter.