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=FORECAST()
Predicts a future value based on a linear trend (the legacy FORECAST.LINEAR)
=FORECAST(x, known_y's, known_x's)
Hover argument names in the table for details.
Output typeNumber
Popularity35 / 100
VolatileNo
Dynamic ArrayNo
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◧ Arguments
| Argument | Type | Required | Description |
|---|---|---|---|
x |
Number | Required | The value to predict |
known_y's |
Range | Required | Known result values (y) |
known_x's |
Range | Required | Known predictor values (x) |
▣ Examples
Example 1
=FORECAST(13, B2:B13, A2:A13)
Example 2
=FORECAST(80, C2:C25, B2:B25)
✦ Tips
- In the arguments, the y values (results) come first, then the x values (predictors).
- It only considers a linear trend; for seasonal data FORECAST.ETS is more suitable.
⚠ Common Errors
#N/A
The two ranges do not contain the same number of data points, or one of them is empty
Fix: Make the two ranges the same size
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