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Дата изменения: Mon Sep 26 12:35:55 2011 Дата индексирования: Mon Oct 1 22:44:35 2012 Кодировка: UTF-8 |
DVARP function returns the variance of a population based on the entire populations. 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. If @field is an integer, for example. 2, the second column is used. Field can also be the label of a column. 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. The first row of a @criteria should contain the labels of the fields for which the criterias are for. Cells below the labels specify conditions, for example, ``>3'' or ``<9''. Equality condition can be given simply by specifing a value, e.g. ``3'' or ``John''. Each row in @criteria specifies a separate condition, i.e. if a row in @database matches with one of the rows in @criteria then that row is counted in (technically speaking boolean OR between the rows in @criteria). If @criteria specifies more than one columns then each of the conditions in these columns should be true that the row in @database matches (again technically speaking boolean AND between the columns in each row in @criteria).