variables

Information about workspace variables

Since R2025a

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    Syntax

    t = variables(w)
    t = variables(w,var1,...,varN)

    Description

    t = variables(w) returns information about the variables contained in the specified workspace object.

    example

    t = variables(w,var1,...,varN) returns information about the specified variables. If any of the specified variables do not exist in w, they are omitted from the output.

    example

    Examples

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    Open Live Script

    Create a set of variables in the base workspace.

    a = 1;
b = true;
c = "Hello, World";

    Create a workspace object for the base workspace. Then display information about the workspace variables.

    w = matlab.lang.Workspace.baseWorkspace;
t = variables(w)
    t=3×7 table
    Name     Size     Bytes      Class      Global    Sparse    Complex
    ____    ______    _____    _________    ______    ______    _______

    "a"     1    1       8     "double"     false     false      false 
    "b"     1    1       1     "logical"    false     false      false 
    "c"     1    1     176     "string"     false     false      false
    Open Live Script

    Create a set of variables in the base workspace.

    a = 1;
b = true;
c = "Hello, World";

    Create a workspace object for the base workspace. Then display information about the workspace variables a and b.

    w = matlab.lang.Workspace.baseWorkspace;
t = variables(w,"a","b")
    t=2×7 table
    Name     Size     Bytes      Class      Global    Sparse    Complex
    ____    ______    _____    _________    ______    ______    _______

    "a"     1    1      8      "double"     false     false      false 
    "b"     1    1      1      "logical"    false     false      false

    Input Arguments

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    Workspace, specified as a matlab.lang.Workspace object.

    Variables, specified as string scalars or character vectors.

    Output Arguments

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    Variable information, returned as a table with a row for each variable in the input workspace. The output table has these columns.

    Column NameDescription
    NameVariable name, returned as a string scalar
    SizeArray size, returned as a numeric array
    BytesMemory size, returned as a numeric scalar
    ClassClass type, returned a string scalar
    GlobalGlobal variable, returned as true or false
    SparseSparse array, returned as true or false
    ComplexComplex variable, returned as true or false

    Version History

    Introduced in R2025a

    See Also

    Objects

    Functions