Every element contained here defines an edge of category values. There is an implied intersection between the values of all of these edges. This element allows for a defined nesting of category fields. This is an indication that these edges will be visually nested (e.g. they are on the same category axis). Allows for the fields to represent a subset of the values in a category level. Indicates how category values should be generated: indexedFull - indexes to the category values in rows, where the set of categories may be more than are referenced indexedVisible - indexes to the category values in rows, where all categories are referenced byValue - category values generated directly in rows Defines the set of values in the data set that are available at the intersection of the category edges. 'true' tells the integrator that they can specify a min a max range for this field and doing so will impact the rendering. The min/max can be provided both server and client side. e.g. this can be used to ensure a fixed axis scale during filtering operations. Specifies that the fields should be generated into the instance table of data generated for the output service. 'true' tells the integrator that they can choose not to override the data set because there is already a default one for the chart Set this to 'false' if the resulting chart does not have any chart elements that tie back to this data set, for instance if this data set is just used as input for statistical calculations which are then displayed on the chart. List of tags that can be used when searching for chart types Indicates whether dataFormat can be specified in the chart instance specification. Chart types that provide their own data formatting in their implementation or do not require default data formatting (e.g. boxplot, waterfall because of their pre-processing of data) should set this property to false. A simple text type that preserves whitespace Icon (16x16) pixels to represent the element.