LINEST_DF - chart function
LINEST_DF() returns the
aggregated degrees of freedom of a linear regression defined by the equation
Syntax:
LINEST_DF([{SetExpression}] [DISTINCT] [TOTAL [<fld{, fld}>]] y_value, x_value [, y0_const [, x0_const]])
Return data type: numeric
Arguments:
Argument | Description |
---|---|
y_value | The expression or field containing the range of |
x_value | The expression or field containing the range of |
|
An optional
value Note: Unless both
|
SetExpression | By default, the aggregation function will aggregate over the set of possible records defined by the selection. An alternative set of records can be defined by a set analysis expression. |
DISTINCT | If the word DISTINCT occurs before the function arguments, duplicates resulting from the evaluation of the function arguments are disregarded. |
TOTAL |
If the word TOTAL occurs before the function arguments, the calculation is made over all possible values given the current selections, and not just those that pertain to the current dimensional value, that is, it disregards the chart dimensions. The TOTAL qualifier may be followed by a list of one or more field names within
angle brackets |
Limitations:
The expression must not contain aggregation functions, unless these inner aggregations contain the TOTAL qualifier. For more advanced nested aggregations, use the advanced aggregation function Aggr, in combination with calculated dimensions.
Text values,