Orange Blog

By: Blaž Zupan, Nov 25, 2022

Videos on hierarchical clustering

Six new videos explaining hierarchical clustering in Orange are now online on YouTube.

Categories: education

By: Marko Toplak, Nov 14, 2022

Orange in a synchrotron

We taught a three-day workshop on Orange for spectral data in UK’s national synchrotron, Diamond Light Source.

Categories: workshop addons

By: Janez Demšar, Oct 10, 2022

Quick previews in Orange widgets

Widgets can now show a quick preview of their output data.

Categories: widgets

By: Ajda Pretnar Žagar, Aug 31, 2022

Socio-economic data at your fingertips

New World Happiness add-on for retrieving socio-economic data from the OECD database joins the Orange family.

Categories: data add-on widgets economy

By: Ajda Pretnar Žagar, Aug 4, 2022

Timeseries add-on lost a lot of weight

Timeseries' visualizations are becoming fully PyQt, making them easier to maintain. We've also fixed many bugs, which should make working with the timeseries a joy once again.


By: Blaž Zupan, Jun 16, 2022

Ideas and Notes for Teachers

We are crafting free educational material to help in data science training.

Categories: education

By: Zala Gruden, Jun 2, 2022

How to grow trees in a marmalade factory?

We visited fourthgraders in our local elementary school and taught them about clustering and data collection.

Categories: Education

By: Ela Praznik, May 25, 2022

An introduction to the Kaplan-Meier Estimator

The Survival Analysis add-on offers accesible tools for survival analysis, the Kaplan-Meier widget being a prime example. In this blogpost we provide an introduction to the Kaplan-Meier Estimator using a simple example and show how the tool can be used in Orange on larger datasets.


By: Ajda Pretnar Žagar, May 20, 2022

Confusion matrix for regression?

Confusion matrix shows classification error, but what is a suitable alternative for observing regression errors in Orange?


By: Noah Novšak, May 13, 2022

Predictive Modelling with Attribute Interactions

The Interactions widget has been added back to Orange 3. Illustrating how to use attribute interactions to improve predictive models.

Categories: orange interaction addons