ROCChart


Synopsis

This operator creates a ROC chart for the given example set and model. The model will be applied on the example set and a ROC chart will be produced afterwards. If you are interested in finding an optimal threshold, the operator

Please note that a predicted label of the given example set will be removed during the application of this operator.


Parameter

use_example_weights
Indicates if example weights should be used for calculations (use 1 as weights for each example otherwise). (boolean; default: true)
use_model
If checked a given model will be applied for generating ROCChart. If not the examples set must have a predicted label. (boolean; default: true)

Values

A list of values that can be logged using the ProcessLog operator.

applycount
The number of times the operator was applied.
looptime
The time elapsed since the current loop started.
time
The time elapsed since this operator started.

Examples

Example process to plot a ROC chart

<source lang="xml"> <operator name="Root" class="Process" expanded="yes">

<operator name="ExampleSetGenerator" class="ExampleSetGenerator"> <parameter key="target_function" value="sinus classification"/> </operator> <operator name="DecisionTree" class="DecisionTree"> <parameter key="keep_example_set" value="true"/> </operator> <operator name="ROCChart" class="ROCChart"> </operator>

</operator> </source>