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ui.Chart.image.byRegion
Generates a Chart from an image. Extracts and plots band values in one or more regions in the image, with each band in a separate series.
- X-axis = Region labeled by xProperty (default: 'system:index')
- Y-axis = Reducer output.
- Series = Band name.
Returns a chart.
| Usage | Returns |
|---|---|
ui.Chart.image.byRegion(image,regions,reducer,scale,xProperty) | ui.Chart |
| Argument | Type | Details |
|---|---|---|
image | Image | Image to extract band values from. |
regions | Feature|FeatureCollection|Geometry|List<Feature>|List<Geometry>, optional | Regions to reduce. Defaults to the image's footprint. |
reducer | Reducer, optional | Reducer that generates the value(s) for the y-axis. Must return a single value per band. Defaults to ee.Reducer.mean(). |
scale | Number, optional | Scale to use with the reducer in meters. |
xProperty | String, optional | Property to be used as the label for each Region on the x-axis. Defaults to 'system:index'. |
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Last updated 2025-07-08 UTC.