Post by santo77885 on Feb 18, 2024 4:30:38 GMT -6
Method 1. Calculation of a linear trend using the LINEIN function The most visual method to understand the mechanics of calculation. Step 1. Let's imagine the initial data in the form of a simple table Let's imagine the raw data in the form of a simple table On the right, we will add columns for calculating the trend value and the seasonality index selected as an additional influencing factor.
Step We calculate the value of the linear trend From the table above: y is the volume of sales for the previous year period number. Let's find the values of Mobile Phone Number parameters a and b using the LINEAR function, where the first parameter of the function is a range of y values, the second is a range of x values.
Enter 1 and 0 in the third and fourth parameters, respectively: An example of searching for parameter values using the LINEN function Note for those who work in Excel: to calculate 2 coefficients of a linear trend (a) and (b) at once, you need to place the cursor in the cell with the formula, select the one next to it on the right and press
Step We calculate the value of the linear trend From the table above: y is the volume of sales for the previous year period number. Let's find the values of Mobile Phone Number parameters a and b using the LINEAR function, where the first parameter of the function is a range of y values, the second is a range of x values.
Enter 1 and 0 in the third and fourth parameters, respectively: An example of searching for parameter values using the LINEN function Note for those who work in Excel: to calculate 2 coefficients of a linear trend (a) and (b) at once, you need to place the cursor in the cell with the formula, select the one next to it on the right and press