Miscellaneous Functions

Miscellaneous utility functions for AmiBroker. These functions are available in misc-util.afl. To use these functions, add following line at the top of your afl:

#include <misc-util.afl>

Functions

amiStaticVarSet

Stores numeric value in static variable by preparing a unique chart & symbol specific key. AmiBroker provides a built-in function StaticVarSet for storing data in static variables. However these variables are shared across charts. So value saved by one chart can be read/modified by another chart. This causes a lot of problems when users run same strategy code that stores data in static variable across many symbols. This is where amiStaticVarSet function comes to rescue, it automatically adds a prefix to variable name. That prefix is made using chart symbol and chart id. It makes variable name unique, and hence safe from multiple executions of same strategy code.

Example

amiStaticVarSet("ORDER_COUNT", 1);
// Saves a value of 1 in a static variable whose name is prefixed with chart symbol and chart id.

Parameters

Parameter	Type	Description
key	string	key or name for static variable
value	number	the numeric value to be stored in static variable

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amiStaticVarGet

Retrieves numeric value stored in a static variable; whose value was saved using amiStaticVarSet function.

Example

orderCount = amiStaticVarGet("ORDER_COUNT");
// Returns the static value stored by key "ORDER_COUNT"

Parameters

Parameter	Type	Description
key	string	key or name of static variable

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amiStaticVarSetText

Stores text value in static variable by preparing a unique chart & symbol specific key. AmiBroker provides a built-in function StaticVarSetText for storing data in static variables. However these variables are shared across charts. So value saved by one chart can be read/modified by another chart. This causes a lot of problems when users run same strategy code that stores data in static variable across many symbols. This is where amiStaticVarSetText function comes to rescue, it automatically adds a prefix to variable name. That prefix is made using chart symbol and chart id. It makes variable name unique, and hence safe from multiple executions of same strategy code.

Example

amiStaticVarSetText("TRADING_ACCOUNT", "ABC123");
// Saves a value of "ABC123" in a static variable whose name is prefixed with chart symbol and chart id.

Parameters

Parameter	Type	Description
key	string	key or name for static variable
value	string	the text value to be stored in static variable

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amiStaticVarGetText

Retrieves text value stored in a static variable; whose value was saved using amiStaticVarSetText function.

Example

tradingAccount = amiStaticVarGetText("TRADING_ACCOUNT");
// Returns the static value stored by key "TRADING_ACCOUNT"

Parameters

Parameter	Type	Description
key	string	key or name of static variable