Mode DataWindow expression function
Description
Calculates the mode of the values of the column. The mode
is the most frequently occurring value.
Syntax
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<span>Mode</span> ( <span>column</span> { FOR <span>range</span> { DISTINCT { <span>expres1</span> {, <span>expres2</span> {, ... } } } } } ) |
|
Argument |
Description |
|---|---|
|
column |
The column for which you want the mode |
|
FOR range (optional) |
The data that will be included in the
For Crosstabs, specify CROSSTAB for range:
For Graph and OLE objects, specify one of the following:
|
|
DISTINCT (optional) |
Causes Mode to consider |
|
expresn (optional) |
One or more expressions that you want |
Return Values
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:
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<span>Mode</span>(salary) |
This expression returns the mode of the values for
group 1 in the column named salary:
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<span>Mode</span>(salary for group 1) |
This expression returns the mode of the values in
column 5 on the current page:
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<span>Mode</span>(#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:
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If(<span>Mode</span>(salary for page) > <span>Mode</span>(salary), "Above <br>Mode", " ") |
This expression for a graph value sets the data value
to the mode of the sale_price column:
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1 |
<span>Mode</span>(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:
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1 |
<span>Mode</span>(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:
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<span>Mode</span>(order_amt for all DISTINCT order_nbr) |