Forecast one value
| A | B | |
|---|---|---|
| 1 | x | y |
| 2 | 1 | 3 |
| 3 | 2 | 5 |
| 4 | 3 | 7 |
| 5 | 4 | 9 |
Formula: D2: =TREND(B2:B5,A2:A5,5)
Result: 11
The fitted line y=2x+1 predicts eleven.
Google Sheets function
TREND in Google Sheets
TREND with worked examples you can test in the live grid. The argument details are in the Excel guide.
In Google Sheets
The arguments and common errors are covered in the TREND Excel guide; check the function help in Google Sheets for its own argument list.
Worked examples in Google Sheets
Fit an observed position
| A | B | |
|---|---|---|
| 1 | x | y |
| 2 | 1 | 3 |
| 3 | 2 | 5 |
| 4 | 3 | 7 |
| 5 | 4 | 9 |
Formula: D2: =TREND(B2:B5,A2:A5,3)
Result: 7
At x=3 the fitted value is seven.
Force a zero intercept
| A | B | |
|---|---|---|
| 1 | x | y |
| 2 | 1 | 2 |
| 3 | 2 | 4 |
| 4 | 3 | 6 |
Formula: D2: =TREND(B2:B4,A2:A4,4,FALSE)
Result: 8
With const FALSE, the fitted line is constrained through the origin.
Try it
A tiny spreadsheet with example data. Edit the formula or any number and see the result.
Formula in D2: =TREND(B2:B7,A2:A7,7)
| A | B | C | D | |
|---|---|---|---|---|
| 1 | Month | Revenue | Result | |
| 2 | 1 | 120 | 194.133333333 | |
| 3 | 2 | 135 | ||
| 4 | 3 | 150 | ||
| 5 | 4 | 148 | ||
| 6 | 5 | 170 | ||
| 7 | 6 | 185 |
Result in D2: 194.133333333
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