any

gets a random property value from a group

any any(string property,object data);

property	string	a data property
data	object	a dataset with items of a group

any	property value

Example

$$("mychart").group({
    by:"year",
    map:{
        sales:["sales","any"]
    }
});
 
//or with the same result
$$("mychart").group({
    by:"year",
    map:{
        sales:["sales"]
    }
});

Related samples

Grouping

Details

Generally, the functor gets the value of the first item but it's not mandatory.

Note that the same effect of grouping will be achieved if you omit the functor at all.

Let's assume that you have the following data set initially:

initial_data = [
    {id:1, sales:262, year:2003, company:"Company 3"},
    {id:2, sales:527, year:1998, company:"Company 1"},
    {id:3, sales:629, year:2006, company:"Company 3"},
    {id:4, sales:403, year:2008, company:"Company 2"},
    {id:5, sales:377, year:2006, company:"Company 2"}
];

You group the data like this:

$$("mychart").group({
    by:"company",
    map:{
        sales:["sales", "sum"],
        year:["year", "any"]
    }
});

And get a new data set:

new_data = [
    {id: "Company 1", sales: 527,  year: 1998}
    {id: "Company 2", sales: 780,  year: 2008}
    {id: "Company 3", sales: 891,  year: 2003}
];