expression property
A metric expression in the request.
An expression is constructed from one or more metrics and numbers.
Accepted operators include: Plus (+), Minus (-), Negation (Unary -),
Divided by (/), Multiplied by (*), Parenthesis, Positive cardinal numbers
(0-9), can include decimals and is limited to 1024 characters. Example
ga:totalRefunds/ga:users, in most cases the metric expression is just a
single metric name like ga:users. Adding mixed MetricType (E.g.,
CURRENCY + PERCENTAGE) metrics will result in unexpected results.
Implementation
core.String? expression;