How to use the FORECAST function
The FORECAST function calculates a value based on existing x and y values using linear regression. Use this function to predict linear trends.
This function is outdated and was replaced with FORECAST.LINEAR function in Excel 2016.
Formula in cell E3:
Excel Function Syntax
FORECAST(x, known_y's, known_x's)
Arguments
| x | Required. The data point for which you want to predict a value. |
| known_y's | Required. Known y points. |
| known_x's | Required. Known x points. |
Comments
The chart below shows the predicted value as a red dot, based on x and y values represented by the blue dots.
This extensive function reference list provides detailed information including syntax, arguments, return values, and examples for many of the functions used in Excel formulas. Click on headers to sort table.
Functions in 'Compatibility'
The FORECAST function function is one of many functions in the 'Compatibility' category.
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How to use the FORECAST function
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