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midrange_midrange_of_a_set_.htm
Navigation:  Templates > Guide to all Templates > Additional Libraries and Templates > Statistics Library >====== MIDRANGE (midrange of a set) ====== Previous pageReturn to chapter overviewNext page

MIDRANGE(dataset)

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MIDRANGE Returns the average of the highest and lowest value in a numeric set.
dataset The label of a QUEUE with its first component field defined as a REAL.

MIDRANGE computes the mean of the smallest and largest values in a data set. The function operates on the numeric set defined by all the entries in the first component of the designated QUEUE (dataset).

For example, given the data set: [1,2,3,4,5] the midrange is (1 + 5) / 2 = 3.

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The passed data set does not have to be sorted. The function copies the passed set. The passed data set is unchanged.

Return DataType:     REAL

Example:

StatSetX QUEUE,PRE()

X         REAL

        END

MidrangeOfSet   REAL

CODE

FREE(StatSetX)                   !free the QUEUE

CLEAR(STADAT:RECORD)             !clear the record buffer

STADAT:Id = STA:Id               !prime the record buffer

STADAT:ItemNumber = 1

SET(STADAT:KeyIdItemNumber,STADAT:KeyIdItemNumber !position file pointer

LOOP                             !load the QUEUE

  NEXT(StatisticsData)           !read next record

  IF ERRORCODE() OR STADAT:Id NOT = STA:Id

   BREAK

  ELSE

   StatSetX:X = STADAT:X         !load the QUEUE buffer

   ADD(StatSetX)                 !add to the QUEUE

  END

END

MidrangeOfSet = MIDRANGE(StatSetX) !call MIDRANGE

midrange_midrange_of_a_set_.htm.txt · Last modified: 2021/04/15 15:57 (external edit)