LINEST DAX Function (Statistical)

Uses the Least Squares method to calculate a straight line that best fits the data, then returns a table describing the line. The equation for the line is of the form: y = m1*x1 + m2*x2 + … + b.

Syntax

LINEST ( <ColumnY>, <ColumnX> [, <ColumnX> [, … ] ] [, <Const>] )
Parameter Attributes Description
ColumnY

The column of known y-values.

ColumnX Repeatable

The columns of known x-values.

Const Optional

A constant TRUE/FALSE value specifying whether to force the constant b to equal 0. If true or omitted, b is calculated normally. If false, b is set to 0.

Return values

Table An entire table or a table with one or more columns.

The table returned has the following columns:

  • SlopeN (one for each X column reference)
  • Intercept
  • StandardErrorSlopeN (one for each X column reference)
  • StandardErrorIntercept
  • CoefficientOfDetermination
  • StandardError
  • FStatistic
  • DegreesOfFreedom
  • RegressionSumOfSquares
  • ResidualSumOfSquares

Remarks

All the column references must be from the same table.

» 1 related article

Examples

DEFINE
    TABLE Test =
        SELECTCOLUMNS (
            {
                ( 2310, 2, 2, 20, 142000 ),
                ( 2333, 2, 2, 12, 144000 ),
                ( 2356, 3, 1.5, 33, 151000 ),
                ( 2379, 3, 2, 43, 150000 ),
                ( 2402, 2, 3, 53, 139000 ),
                ( 2425, 4, 2, 23, 169000 ),
                ( 2448, 2, 1.5, 99, 126000 ),
                ( 2471, 2, 2, 34, 142900 ),
                ( 2494, 3, 3, 23, 163000 ),
                ( 2517, 4, 4, 55, 169000 ),
                ( 2540, 2, 3, 22, 149000 )
            },
            "Floor space (x1)", [Value1],
            "Offices (x2)", [Value2],
            "Entrances (x3)", [Value3],
            "Age (x4)", [Value4],
            "Assessed value (y)", [Value5]
        )

EVALUATE
Test

EVALUATE
LINEST (
    Test[Assessed value (y)],
    Test[Floor space (x1)],
    Test[Offices (x2)],
    Test[Entrances (x3)],
    Test[Age (x4)]
)
Floor space (x1) Offices (x2) Entrances (x3) Age (x4) Assessed value (y)
2,310 2 2.00 20 142,000
2,333 2 2.00 12 144,000
2,356 3 1.50 33 151,000
2,379 3 2.00 43 150,000
2,402 2 3.00 53 139,000
2,425 4 2.00 23 169,000
2,448 2 1.50 99 126,000
2,471 2 2.00 34 142,900
2,494 3 3.00 23 163,000
2,517 4 4.00 55 169,000
2,540 2 3.00 22 149,000
Slope1 Slope2 Slope3 Slope4 Intercept StandardErrorSlope1 StandardErrorSlope2 StandardErrorSlope3 StandardErrorSlope4 StandardErrorIntercept CoefficientOfDetermination StandardError FStatistic DegreesOfFreedom RegressionSumOfSquares ResidualSumOfSquares
27.64 12,529.77 2,553.21 -234.24 52,317.83 5.43 400.07 530.67 13.27 12,237.36 1.00 970.58 459.75 6 1,732,393,319.23 5,652,135.32

Related articles

Learn more about LINEST in the following articles:

Last update: Feb 17, 2024   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo

Microsoft documentation: https://learn.microsoft.com/dax/linest-function-dax

2018-2024 © SQLBI. All rights are reserved. Information coming from Microsoft documentation is property of Microsoft Corp. » Contact us   » Privacy Policy & Cookies

Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.

Iterator

Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.

Deprecated

This function is deprecated. Jump to the Alternatives section to see the function to use.

Volatile

A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.

Deprecated

This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.

Contribute

Want to improve the content of LINEST? Did you find any issue?
Please, report it us! All submissions will be evaluated for possible updates of the content.


This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.