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Jan 04, 2013 The images below and the following text summarize the mechanics of using LINEST in Excel. Since it is an array function, select 6 cells (2 columns, 3 rows). You can select up to 5 rows (10 cells) and get even more statistics, but we usually only need the first six. Hit the equal sign key to tell Excel you are about to enter a function. Steps to Use the LINEST Function in Excel: Click the formula tab in the menu. Select the Insert function. We will get the dialog box as shown below and choose the statistical option under this you will get a list of function where we can find the LINEST.

This article explains how to use the LINEST function with a description of its formula syntax and examples.

Linest is an in-built mathematical function of excel.

It is designed to carry out linear regression analysis and return a set of related statistics.

Figure 1. of Linest Function in Excel

Formula Syntax

=LINEST( y_values, x_values, constant)

Y_values are a specific array of independent values within our linear equation.

X_values (optional). A known array of dependent values within our linear equation. In cases where this parameter isn’t specified, our assumed dependent values should be 1,2,3,4,… with the same amount of values as our y_values.

Constant (optional) this can be TRUE or FALSE. Once this parameter is not included, the LINEST function will assume it to be TRUE.

How to use the LINEST function

We will demonstrate the theory and calculations of using Linest with the following simple steps;

The LINEST function determines the statistical Linest values for data arranged in a straight line explaining the relationship between an independent variable and a dependent variable(s) and returns a numerical value which best describes our data.

Let’s say we have the monthly advertising and sales records at a clothing store for six months.

1. We begin by entering our corresponding data values for each month into separate columns of our excel worksheet.

Figure 2. of Linest Function

2. TheLinest formula we shall enter into cell D2 of our worksheet example is as follows:

=LINEST(C2:C7, B2:B7),TRUE,FALSE)

Figure 3. of Linest Function in Excel

If found to be TRUE, the LINEST output will be a number value having additional regression statistics.

If omitted, or found to be FALSE, LINEST function returns error.

LINEST can also be combined with other functions for use in calculating different types of model statistics which are linear with unknown parameters, such as polynomials, logarithmic, exponentials, and also power series.

Since the Linest function calculates a set of values, it should be entered into our worksheet in an array format.

This might make the LINEST function a bit tricky to use because we should not only input our formula syntax correctly, but also interpret our Linest output properly.

Additional Statistics for Linest Formula

To obtain even more statistical data for our linear analysis, we can enter another TRUE operation after the last argument in our Linest array.

Applied to our worksheet example, the Linest formula syntax appears in the following shape:

Figure 4. of Linest Function in Excel

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This Excel tutorial explains how to use the Excel LINEST function with syntax and examples.

Description

The Microsoft Excel LINEST function uses the least squares method to calculate the statistics for a straight line and returns an array describing that line.

The LINEST function is a built-in function in Excel that is categorized as a Statistical Function. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the LINEST function can be entered as part of a formula in a cell of a worksheet.

The LINEST function uses the following line equation:

Syntax

The syntax for the LINEST function in Microsoft Excel is:

Parameters or Arguments

y_values

The known set of 'y values' from the line equation.

x_values

Optional. It is the known set of 'x values' from the line equation. If this parameter is omitted, x_values is assumed to be {1,2,3,...} with the same number of values as y_values.

constant

Optional. It is either TRUE or FALSE. If this parameter is omitted, the function will assume TRUE. If constant is TRUE, b in the line equation is calculated normally. If constant is FALSE, b becomes 0 so that the line equation is evalulated as y = mx.

additional_statistics

Optional. It is either TRUE or FALSE. If this parameter is omitted, the function will assume FALSE. If additional_statistics is TRUE, the function will return additional regression statistics. If additional_statistics is FALSE, the function will returns only m coefficients and b constant.

Returns

The LINEST function returns a numeric value.

Applies To

• Excel for Office 365, Excel 2019, Excel 2016, Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000

Example (as Worksheet Function)

Let's look at some Excel LINEST function examples and explore how to use the LINEST function as a worksheet function in Microsoft Excel:

This first example we have entered the y values in column A (cells A2 through A6) and the x values in column B (cells B2 through B6). Then we have entered the following LINEST function in both cells D2 and E2 as follows:

The LINEST function can be written as an array formula. When creating your array formula, you need to do the following:

1. Enter the formulas in both cells D2 and E2
2. Highlight cells D2 and E2
3. Press F2 (in Windows) or CONTROL+U (on Mac)
4. Press Ctrl+Shift+Enter

This creates {} brackets around your formulas as follows:

You can see how the formula look in the images below.

How To Get The Linest On Excel For Macnextlasopa Free

The value in cell D2 returns the slope of 0.5 and the value in cell E2 returns the y-intercept of 0.

This formula could also be written as follows (entering values instead of cell ranges):

How To Get The Linest On Excel For Macnextlasopa X

The LINEST function can be written as an array formula. When creating your array formula, you need to do the following:

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1. Enter the formulas in both cells D2 and E2
2. Highlight cells D2 and E2
3. Press F2 (in Windows) or CONTROL+U (on Mac)
4. Press Ctrl+Shift+Enter

How To Get The Linest On Excel For Macnextlasopa Two

This creates {} brackets around your formulas as follows: