FieldValueCount() is an integer function that finds the number of distinct values in a field.
Syntax:
FieldValueCount(field_name)
Return data type: integer
Arguments:
- field_name: Name of the field for which the index is required. For example, the column in a table. Must be given as a string value. This means that the field name must be enclosed by single quotes.
Examples:
Add the example data below to your document and run it. The following examples use the field: First name from the tableNames.
| Example | Result |
|---|---|
|
Chart function - in a table containing the dimension First name, add as a measure: FieldValueCount('First name') |
5 as Peter appears twice. |
|
Chart function with First name: FieldValueCount('Initials') |
6 as Initials only has distinct values. |
|
Script function - given the table Names is loaded, as in the example data: John1: Load FieldValueCount('First name') as MyFieldCount1 Resident Names; |
MyFieldCount1=5, because 'John' appears twice. |
|
Script function with Names: John1: Load FieldValueCount('Initials') as MyInitialsCount1 Resident Names; |
MyFieldCount1=6, because 'Initials' only has distinct values. |
Data used in example:
Data used in example:
Names:
LOAD * inline [
"First name"|"Last name"|Initials|"Has cellphone"
John|Anderson|JA|Yes
Sue|Brown|SB|Yes
Mark|Carr|MC |No
Peter|Devonshire|PD|No
Jane|Elliot|JE|Yes
Peter|Franc|PF|Yes ] (delimiter is '|');
FieldCount1:
Load FieldValueCount('First name') as MyFieldCount1
Resident Names;
FieldCount2:
Load FieldValueCount('Initials') as MyInitialsCount1
Resident Names;
