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MaxString - chart function

MaxString() finds string values in the expression or field and returns the last text value in the text sort order.

Syntax:  

MaxString({[SetExpression] [TOTAL [<fld{, fld}>]]} expr)

Return data type: dual

Arguments:  

Argument Description
expr The expression or field containing the data to be measured.
SetExpression By default, the aggregation function will aggregate over the set of possible records defined by the selection. An alternative set of records can be defined by a set analysis expression.
TOTAL

If the word TOTAL occurs before the function arguments, the calculation is made over all possible values given the current selections, and not just those that pertain to the current dimensional value, that is, it disregards the chart dimensions.

The TOTAL qualifier may be followed by a list of one or more field names within angle brackets <fld>. These field names should be a subset of the chart dimension variables.

See: Defining the aggregation scope

Limitations:  

If the expression contains no values with a string representation NULL is returned.

Examples and results:  

SalesGroup Amount MaxString(Team) MaxString(Date)
East 14000 Delta 2013/08/01
East 20000 Gamma 2013/11/01
East 25000 Alpha 2013/07/01
West 14000 Eta 2013/10/01
West 17000 Epsilon 2013/09/01
West 19000 Zeta 2013/06/01
West 23000 Theta 2013/12/01
Note: This table represents all values of the dimension Customer with corresponding Product values. In an actual table chart on a sheet, there will be a row for each value of Customer and Product.
Example Result

MaxString(Team)

There are three values of 20000 for the dimension Amount: two of Gamma (on different dates), and one of Beta. The result of the measure MaxString (Team) is therefore Gamma, because this is the highest value in the sorted strings.

MaxString(Date)

2013/11/01 is the greatest Date value of the three associated with the dimension Amount. This assumes your script has the SET statement SET DateFormat='YYYY-MM-DD';

Data used in example:

TeamData:

LOAD * inline [

SalesGroup|Team|Date|Amount

East|Gamma|01/05/2013|20000

East|Gamma|02/05/2013|20000

West|Zeta|01/06/2013|19000

East|Alpha|01/07/2013|25000

East|Delta|01/08/2013|14000

West|Epsilon|01/09/2013|17000

West|Eta|01/10/2013|14000

East|Beta|01/11/2013|20000

West|Theta|01/12/2013|23000

] (delimiter is '|');

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