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Linear regression in Excel - what you need to consider

In a linear regression, you are trying to describe dependent variables using one or more independent variables. Excel provides you with a corresponding function for performing linear regression.

How to perform a linear regression in Excel

If you want to perform a linear regression to make a forecast or find correlations between your data, Excel offers you a special function. In order to perform a regression, there must be a linear relationship between the x and y variables. In addition, the y variable must be scaled metrically. There are also some requirements for the error terms.
  1. Click on "Data" in Excel and then on "Data Analysis". Here, select the "Regression" option. In some cases, you may need to activate this function via "File" > "Options" > "Add-Ins" > "Manage" > "Go".
  2. In the Y area, now enter the column range where your Y variables are located. Im Bereich „X-Eingabebereich“ tragen Sie entsprechend die Spalten für die X-Variablen ein.
  3. Möchten Sie einen Spaltenkopf, der beschriftet ist, dann müssen Sie die Option „Beschriftungen“ aktivieren. Hier können Sie auch das gewünschte Konfidenzniveau eintragen.
  4. Außerdem ist es notwendig, unter „Ausgangsbereich“ anzugeben, wo die Ergebnisse eingetragen werden sollen.

By Supen Lilland

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