A Map with axis name as key and axis size as value. Identical to axis size information in Domain.axes.
A string identifying the data type of the non-null range values within .values. Can be "float", "integer", or "string".
If defined, any number in .values is equal or greater than .actualMin.
If defined, any number in .values is equal or lower than .actualMax.
If .values has only missing values or .dataType is "string", then .actualMin and .actualMax are not defined, otherwise both exist.
Returns a range value of type .dataType or null for the given axis indices.
obj - An object where each key is an axis name and each value an axis value index.
Missing axis indices are defaulted to 0.
var range = ...
console.log(range.size) // 'x' => 10, 'y' => 50, 't' => 1
var val = arr.get({x: 5, y: 49, t: 0})