QUARTILE function

Returns the quartile of a data set


 * QUARTILE(array,quart)
 * Array - the array or cell range of numeric values for which you want the quartile value.
 * Quart - indicates which value to return.
 * If quart equals 0, QUARTILE returns the minimum value
 * If quart equals 0, QUARTILE returns the 25th percentile
 * If quart equals 0, QUARTILE returns the 50th percentile
 * If quart equals 0, QUARTILE returns the 75th percentile
 * If quart equals 4, QUARTILE returns the maximum value
 * If array is empty, QUARTILE returns the #NUM! error value.
 * If quart is not an integer, it is truncated.
 * If quart 4, QUARTILE returns the #NUM! error value.
 * MIN, MEDIAN, and MAX return the same value as QUARTILE when quart is equal to 0 (zero), 2, and 4, respectively.