To return the larger of  two numbers

Use the [max] method. This example iterates through an array of values and uses the [max] method to return the maximum value of the data set.

Code

var( temperatures = array(27, 25, 30, 22, 31, 28, 27),
     maxTemp = integer )

with t in $temperatures 
     do => {
          $maxTemp = max($maxTemp, #t)
     }

'The maximum temperature was '+$maxTemp+' degrees.'

Result

The maximum temperature was 31 degrees.