AI-generated Key Takeaways
-
The
ConfusionMatrix.order()method returns the name and order of the rows and columns of a confusion matrix as a list. -
This method can be used to retrieve the default order or a specified order assigned during the confusion matrix creation.
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The examples demonstrate how to use
order()in both JavaScript and Python with confusion matrices constructed from arrays.
| Usage | Returns |
|---|---|
ConfusionMatrix.
order
()
|
List |
| Argument | Type | Details |
|---|---|---|
|
this:
confusionMatrix
|
ConfusionMatrix |
Examples
Code Editor (JavaScript)
// Construct an error/confusion matrix from an array (rows are actual values, // columns are predicted values). We construct an error matrix here for brevity // and matrix visualization, in most applications the confusion matrix will be // generated from ee.Classifier.confusionMatrix. var array = ee . Array ([[ 32 , 0 , 0 , 0 , 1 , 0 ], [ 0 , 5 , 0 , 0 , 1 , 0 ], [ 0 , 0 , 1 , 3 , 0 , 0 ], [ 0 , 1 , 4 , 26 , 8 , 0 ], [ 0 , 0 , 0 , 7 , 15 , 0 ], [ 0 , 0 , 0 , 1 , 0 , 5 ]]); var cmDefaultOrder = ee . ConfusionMatrix ( array ); print ( 'Default name and order of the rows and columns' , cmDefaultOrder . order ()); var order = [ 11 , 22 , 42 , 52 , 71 , 81 ]; var cmSpecifiedOrder = ee . ConfusionMatrix ({ array : array , order : order }); print ( 'Specified name and order of the rows and columns' , cmSpecifiedOrder . order ());
import ee import geemap.core as geemap
Colab (Python)
# Construct an error/confusion matrix from an array (rows are actual values, # columns are predicted values). We construct an error matrix here for brevity # and matrix visualization, in most applications the confusion matrix will be # generated from ee.Classifier.confusionMatrix. array = ee . Array ([[ 32 , 0 , 0 , 0 , 1 , 0 ], [ 0 , 5 , 0 , 0 , 1 , 0 ], [ 0 , 0 , 1 , 3 , 0 , 0 ], [ 0 , 1 , 4 , 26 , 8 , 0 ], [ 0 , 0 , 0 , 7 , 15 , 0 ], [ 0 , 0 , 0 , 1 , 0 , 5 ]]) cm_default_order = ee . ConfusionMatrix ( array ) display ( 'Default name and order of the rows and columns:' , cm_default_order . order ()) order = [ 11 , 22 , 42 , 52 , 71 , 81 ] cm_specified_order = ee . ConfusionMatrix ( array , order ) display ( 'Specified name and order of the rows and columns:' , cm_specified_order . order ())
