stdevOver
stdevOver
calculates the standard deviation of the specified measure,
partitioned by the chosen attribute or attributes, based on a sample.
Syntax
The brackets are required. To see which arguments are optional, see the following descriptions.
stdevOver (
measure
,[ partition_field, ... ]
,calculation level
)
Arguments
 measure

The measure that you want to do the calculation for, for example
sum({Sales Amt})
. Use an aggregation if the calculation level is set toNULL
orPOST_AGG_FILTER
. Don't use an aggregation if the calculation level is set toPRE_FILTER
orPRE_AGG
.  partition field

(Optional) One or more dimensions that you want to partition by, separated by commas.
Each field in the list is enclosed in {} (curly braces), if it is more than one word. The entire list is enclosed in [ ] (square brackets).
 calculation level

(Optional) Specifies the calculation level to use:

PRE_FILTER
– Prefilter calculations are computed before the dataset filters. 
PRE_AGG
– Preaggregate calculations are computed before applying aggregations and top and bottom N filters to the visuals. 
POST_AGG_FILTER
– (default) table calculations are computed when the visuals display.
This value defaults to
POST_AGG_FILTER
when blank. For more information, see Using LevelAware Aggregations. 
Example
The following example calculates the standard deviation of sum(Sales)
,
partitioned by City
and State
, based on a sample..
stdevOver ( sum(Sales), [City, State] )
The following example calculates the standard deviation of Billed Amount
over
Customer Region
, based on a sample. The fields in the table
calculation are in the field wells of the visual.
stdevOver ( sum({Billed Amount}), [{Customer Region}] )