Mode
DataWindow expression function
Description
Calculates the mode of the values of the column. The mode is the
most frequently occurring value.
Syntax
|
1 |
Mode ( column { FOR range { DISTINCT { expres1 {, expres2 {, ... } } } } } ) |
|
Argument |
Description |
|---|---|
|
column |
The column for which you want the mode of the data |
|
FOR range (optional) |
The data that will be included in the mode. For most
For Crosstabs, specify CROSSTAB for
For Graph and OLE objects, specify one of
|
|
DISTINCT (optional) |
Causes Mode to consider only the distinct values in |
|
expresn (optional) |
One or more expressions that you want to evaluate to |
Return value
The numeric datatype of the column. Returns the mode of the values
of the rows in range if it succeeds and -1 if an error occurs.
Usage
If you specify range, Mode returns the mode of column in range. If
you specify DISTINCT, Mode returns the mode of the distinct values in
column, or if you specify expresn, the mode of column for each distinct
value of expresn.
For graphs and OLE objects, you do not select the range when you
call the function. The range has already been determined by the Rows
setting on the Data property page (the Range property), and the
aggregation function uses that range. Settings for Rows include:
-
For the Graph or OLE presentation style, Rows is always
All. -
For Graph controls, Rows can be All, Page, or Group.
-
For OLE controls, Rows can be All, Current Row, Page, or Group.
The available choices depend on the layer the control occupies.
In calculating the mode, null values are ignored.
Not in validation rules or filter expressions
You cannot use this or other aggregate functions in validation
rules or filter expressions.
Using an aggregate function cancels the effect of setting Retrieve
Rows As Needed in the painter. To do the aggregation, a DataWindow
object always retrieves all rows.
Examples
This expression returns the mode of the values in the column named
salary:
|
1 |
Mode(salary) |
This expression returns the mode of the values for group 1 in the
column named salary:
|
1 |
Mode(salary for group 1) |
This expression returns the mode of the values in column 5 on the
current page:
|
1 |
Mode(#5 for page) |
This computed field returns Above Mode if the mode of the salary for
the page is greater than the mode for the report:
|
1 |
If(Mode(salary for page) > Mode(salary), "Above Mode", " ") |
This expression for a graph value sets the data value to the mode of
the sale_price column:
|
1 |
Mode(sale_price) |
This expression for a graph value entered on the Data page in the
graph’s property sheet sets the data value to the mode of the sale_price
column for the entire graph:
|
1 |
Mode(sale_price for graph) |
Assuming a DataWindow object displays the order number, amount, and
line items for each order, this computed field returns the mode of the
order amount for the distinct order numbers:
|
1 |
Mode(order_amt for all DISTINCT order_nbr) |
See also