Model Evaluation Example - Orange Typing CST Test
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Model Evaluation Example — Orange Code
Evaluating models using Orange's Test & Score and visualization widgets.
// In Orange Canvas:
// 1. Load dataset
// 2. Add classifier widgets
// 3. Connect to 'Test & Score' for cross-validation
// 4. Optionally add 'Confusion Matrix', 'ROC Analysis', or 'Predictions'Orange Language Guide
Orange is an open-source, visual programming and data mining toolkit for machine learning, written in Python, that provides interactive workflows, visualizations, and a library of pre-built machine learning algorithms for classification, regression, clustering, and data preprocessing.
Primary Use Cases
- ▸Classification and regression modeling
- ▸Clustering and unsupervised learning
- ▸Data preprocessing and feature selection
- ▸Interactive data visualization and exploration
- ▸Educational and research-focused data analysis
Notable Features
- ▸Drag-and-drop visual workflow designer
- ▸Interactive data and model visualizations
- ▸Wide range of machine learning algorithms
- ▸Extensible via Python scripting
- ▸Domain-specific add-ons (bioinformatics, text mining, network analytics)
Origin & Creator
Orange was developed at the Bioinformatics Laboratory at the University of Ljubljana, Slovenia, starting in 1996, to support teaching, research, and practical data mining experiments.
Industrial Note
Orange is widely used in academia, research, and industries needing rapid prototyping, interactive visualization, and educational workflows, particularly in bioinformatics, social sciences, and small to medium-scale analytics.