Datasets and Parameters › Process Parameters › Calculated Parameters › Access Dataset Fields in Expressions › Syntax for Specifying the Value of a Field

Syntax for Specifying the Value of a Field

A value in a single unindexed field is accessed in an expression using dot notation:

dataset_reference.field_name

The dataset_reference parameter corresponds to one of the keywords previously described. The field_name parameter corresponds to a field name in the dataset. The following example returns the value of field Y in a process dataset:

Process.Y

Alternatively, a value can be accessed using bracket notation:

dataset_reference[field_name_expression]

The field_name_expression parameter is an expression that returns the name of a field in the referenced dataset. The following example returns the value of field Y in a process dataset:

Process["Y"]

The best practice is typically to use the bracket notation for an expression to specify a dataset or field name in a dataset.