In Igor, arrays of data are always global objects: they are always passed into a routine by reference as a local "wave reference" parameter. gCount will continue to exist after the end of command execution, and can be observed in Igor´s Data Browser. Variable/G gCount= CountValuesThatExceed(wave0,100)Ĭreates a global variable gCount whose value is the returned exceed value. Afterwards only the returned value exists, either in the calling routine or in a global if assigned there. In the example above the parameters w and value and the local variables exceed, i, and n exist only while the CountValuesThatExceed function is running. Like nearly every other procedural language, Igor´s language supports local (or "stack") variables (and strings and structures) that vanish when the routine containing them ceases execution. Here's a simple function that counts the number of data values that exceed a given number: The parameters can be required or they can be optional. They can be numbers, strings, structures, or references to arrays ("waves") of data.
Parameters can be passed by value or by reference.
Parameters and Return Valuesįunctions have parameters and return values. User-defined functions are quite similar to functions written in C, Pascal, or modern Fortran and are compiled for speed. Define new user-defined menus or menu items.
IGOR PRO AVAERGE COMMANDS WINDOWS
Procedure windows can also contain text that causes Igor to: The Help menu´s Command Help item is a useful guide to these, and contextual help menus provide templates and quick access to documentation. You can use Igor's built-in programming language to call built-in functions and "operations", of which there are a considerable number (about 550). Igor ships with about 200 such procedure files written by WaveMetrics programmers. In addition to the main procedure window named "Procedure" (which is inseparable from the current Igor "experiment"), additional procedure windows may used to organize your work or to re-use routines previously written by the user or others. These routines are entered as text in "procedure windows":
IGOR PRO AVAERGE COMMANDS SOFTWARE
You can write your own software routines (or "procedures") using Igor´s built-in programming language.
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