... DSTDEV(database,field,criteria) . ... The populations consists of numbers that match conditions specified. @database is a range of cells in which rows of related information are records and columns of data are fields. The first row of a database contains labels for each column. @field specifies which column is used in the function. ... For example, ``Age'' refers to the column with the label ``Age'' in @database range. @criteria is the range of cells which contains the specified conditions. ...