FieldValueCount

FieldValueCount() is an integer function that finds the number of distinct values in a field.

Syntax:

FieldValueCount(field_name)

Return data type: integer

Arguments:

Argument	Description
field_name	Name of the field for which the value 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 and results:

The following examples use the field: First name from the tableNames.

Examples	Results
Add the example data to your document and run it.	The table Names is loaded, as in the sample data.
Chart function: In a table containing the dimension First name, add as a measure:
FieldValueCount('First name')	5 as Peter appears twice.
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.
John1: Load FieldValueCount('Initials') as MyInitialsCount1 Resident Names;	MyFieldCount1=6, because 'Initials' only has distinct values.

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;