dict

dict(keyObj, valueObj, [ordered=false])

or

dict(keyType, valueType, [ordered=false])

For the first usage:

keyObj is a vector indicating dictionary keys.

valueObj is a vector indicating dictionary values.

For the second usage:

keyType is the data type of dictionary keys. The following data categories are supported: Integral (excluding COMPRESSED), Temporal, Floating and Literal.

valueType is the data type of dictionary values. Note that COMPLEX/POINT is not supported.

ordered (optional) is a Boolean value. The default value is false, which indicates to create a regular dictionary. True means to create an ordered dictionary. The regular dictionaries do not track the insertion order of the key-value pairs whereas the ordered dictionaries preserve the insertion order of key-value pairs.

Return a dictionary object.

x=1 2 3
y=4.5 7.8 4.3
z=dict(x,y);
z;
// output
3->4.3
1->4.5
2->7.8

z=dict(INT,DOUBLE);
z[5]=7.9;
z;
// output
5->7.9

z[3]=6;
z;
// output
3->6
5->7.9

dt=dict([`test], [1]);
dt;
// output
test->1

//create an ordered dictionary
$z=dict(x,y,true)
$z;
1->4.5
2->7.8
3->4.3

// y is a vector of DECIMAL32 type. Create an ordered dictionary z with y as values.
x=1 3 2
y = decimal32(1.23 3 3.14, 3)
z=dict(x,y,true);
z;
// output
1->1.230
3->3.000
2->3.140

To get keys and values of a dictionary:

x=1 2 3
y=4.5 7.8 4.3
z=dict(x,y);

z.keys();
// output
[3,1,2]

z.values();
// output
[4.3,4.5,7.8]

related system functions: array, matrix, dictUpdate!, syncDict