columns

an array of columns from a data set that should be displayed on a map

array columns;

Example

webix.ui({          
    view:"geochart", 
    id:"map",
    data:data,
    // provide your own Google API key
    // https://developers.google.com/maps/documentation/javascript/get-api-key
    key:"AIzaSyAi0oVNVO-e603aUY8SILdD4v9bVBkmiTg",
    columns:["country", "population"],
});