         # Start with a copy of the shared configuration.
         conf = _.cloneDeep(COMMON_CONFIG)
         # The parameter-specific configuration.
-        paramConf = parameterConfiguration(modelingResults, paramKey, precision)
+        paramConf = parameterConfiguration(modelingResults, paramKey)
         # Add the parameter-specific settings.
         _.merge(conf, paramConf)
 

          singleParameterConfiguration(modelingResults, paramKey)

      # @param paramKey the modeling parameter key
      # @returns the tooltip HTML content generator function
      tooltipGenerator = (paramKey) ->
         # The tooltip value heading.
         if paramKey is 'kTrans'
           propertyFormatter = (modelingResult, property) ->
             dspConf = Modeling.properties[property]
             # The value to display.

        # The smallest value precision that captures at least
        # one non-zero digit for all non-zero values.
        precision = Chart.minPrecision(values)
        # The tooltip content generator.
        generateTooltip = tooltipGenerator(paramKey, precision)
        # The tooltip and Y tick formatter depend on the precision.
        mixin =
          options:
