![]() The CORREL function returns the correlation coefficient of two arrays. Aside from the LINEST, these functions do not have any other optional arguments. If you do not want to use array functions, you can use these functions instead. The SLOPE and INTERCEPT functions return the same slope and Y-intercept values. ![]() Note: These results are the Coefficient numbers in the Summary Output of Regression tool. To return both values, you need to select 2 adjacent cells, and press the Ctrl + Alt + Enter combination when entering the formula. Using a function with X and Y values will return slope and Y-intercept values of the regression equation y = bx + a. The remaining two arguments are optional TRUE/FALSE arguments for the Constant is Zero assumption, and if additional regression stats are to be calculated. It takes 4 arguments, two of which are the array of values that contain the independent and dependent variables. The LINEST function calculates a straight line that best fits your data using the "least squares" method, and returns an array describing that line. Let’s go over each of these functions and see how they work on a few examples. Excel’s statistical functions like these will provide useful when creating reports: You can use formulas to reach certain values when performing a simple regression analysis. Note: Even though the Regression tool in the Data Analysis can provide an analysis of the results, it is not dynamic, and you have to open the Regression dialog every time when using a new set of data.
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