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ee.FeatureCollection.remap
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Remaps the value of a specific property in a collection. Takes two parallel lists and maps values found in one to values in the other. Any element with a value that is not specified in the first list is dropped from the output collection.
Usage Returns FeatureCollection. remap (lookupIn, lookupOut, columnName)
FeatureCollection
Argument Type Details this: collection
FeatureCollection The collection to be modified. lookupIn
List The input mapping values. Restricted to strings and integers. lookupOut
List The output mapping values. Must be the same size as lookupIn. columnName
String The name of the property to remap.
Examples
Code Editor (JavaScript)
// Classify features based on a string property.
// The 'nonsense' category gets dropped.
var fc = ee . FeatureCollection ([
ee . Feature ( ee . Geometry . Point ([ 1 , 2 ]), { isTree : 'Tree '}),
ee . Feature ( ee . Geometry . Point ([ 3 , 4 ]), { isTree : 'NotTree '}),
ee . Feature ( ee . Geometry . Point ([ 5 , 6 ]), { isTree : 'nonsense '}),
]);
var trees = fc . remap ([ 'NotTree ', 'Tree '], [ 0 , 1 ], 'isTree ');
print ( 'remapped trees ', trees );
Python setup
See the
Python Environment page for information on the Python API and using
geemap
for interactive development.
import ee
import geemap.core as geemap
Colab (Python)
# Classify features based on a string property.
# The 'nonsense' category gets dropped.
fc = ee . FeatureCollection ([
ee . Feature ( ee . Geometry . Point ([ 1 , 2 ]), { 'isTree ': 'Tree '}),
ee . Feature ( ee . Geometry . Point ([ 3 , 4 ]), { 'isTree ': 'NotTree '}),
ee . Feature ( ee . Geometry . Point ([ 5 , 6 ]), { 'isTree ': 'nonsense '}),
])
trees = fc . remap ([ 'NotTree ', 'Tree '], [ 0 , 1 ], 'isTree ')
print ( 'Remapped trees :', trees . getInfo ())
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Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License , and code samples are licensed under the Apache 2.0 License . For details, see the Google Developers Site Policies . Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-10-06 UTC.
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"id": "missingTheInformationINeed",
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},{
"type": "thumb-down",
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Need to tell us more?
{"lastModified": "Last updated 2023-10-06 UTC."}
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