mlSetVariable (Function)

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mlSetVariable (Function)

In french: mlEcritVariable

Writes the value of a variable for the MATLAB session.

Versions 24 and later

This function is now available for WEBDEV sites in Windows.

New in version 24

This function is now available for WEBDEV sites in Windows.

Example

gnIdSession is int
gnIdSession = mlInitialize()

IF gnIdSession = -1 THEN
Error(ErrorInfo(errFullDetails))
END

// Code du bouton BTN_Creation_Variables
tParamètre is array of 1 real = [4]
tRésultat is array of 1 by 1 real = [[123]]

IF NOT mlSetVariable(gnIdSession, "i", tParamètre) THEN
Error("Echec d'écriture de la variable")
RETURN
END

sCodeAExécuter is string = "maRac = sqrt(i)"
SAI_Résultat = mlExécute(gnIdSession, sCodeAExécuter)

tRésultat = mlGetVariable(gnIdSession, "maRac")
IF ErrorOccurred THEN
Trace("Erreur: " + ErrorInfo())
END

Trace("Racine = " + tRésultat[1,1])

Trace("Liste des variables avant suppression: " + mlListVariable(gnIdSession))

mlDeleteVariable(gnIdSession, "i")
mlDeleteVariable(gnIdSession, "maRac")

Trace("Liste des variables après suppression: " + mlListVariable(gnIdSession))

Syntax

<Result> = mlSetVariable(<Session identifier> , <Variable name> , <Value>)

<Result>: Boolean

True if the variable was modified,
False otherwise. The ErrorOccurred variable is set to True if an error occurs. To get the details of the error, use ErrorInfo with the errMessage constant.

<Session identifier>: Integer

Identifier of MATLAB session. This identifier is returned by the mlInitialize function.

<Variable name>: Character string (with quotes)

Name of the variable to write.

<Value>: Array of integers, reals, ...

Value of variable.

Remarks

Supported types

The supported types are:

signed and unsigned integers on 1, 2, 4 and 8,
reals on 4 and 8,
booleans,
characters.

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