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.
Orange Blog
By: Ajda Pretnar, Jun 19, 2020
Managing Data with Edit Domain
How to handle your data with Edit Domain - rename, change type, merge, sort...
By: Ajda Pretnar, Aug 27, 2019
Aggregate, Group By and Pivot with... Pivot Table!
Orange has a brand new Pivot Table widget with many aggregation and grouping functionalities. It can be used to transform the data on-the-fly and use the output for downstream analysis.
By: AJDA, Jun 12, 2018
From Surveys to Orange
Today we have finished a series of workshops for the Ministry of Public Affairs. This was a year-long cooperation and we had many students asking many different questions. There was however one that we talked about a lot. If I have a survey, how do I get it into Orange? Related: Analyzing Surveys We are using EnKlik Anketa service, which is a great Slovenian product offering a wide array of options for the creation of surveys.
By: AJDA, May 30, 2018
Spectroscopy Workshop at BioSpec and How to Merge Data
Last week Marko and I visited the land of the midnight sun - Norway! We held a two-day workshop on spectroscopy data analysis in Orange at the Norwegian University of Life Sciences. The students from BioSpec lab were yet again incredible and we really dug deep into Orange. Related: Orange with Spectroscopy Add-on A class full of dedicated scientists. One thing we did was see how to join data from two different sources.
By: AJDA, Feb 16, 2018
How to enable SQL widget in Orange
A lot of you have been interested in enabling SQL widget in Orange, especially regarding the installation of a psycopg backend that makes the widget actually work. This post will be slightly more technical, but I will try to keep it to a minimum. Scroll to the bottom for installation instructions. Related: SQL for Orange Why won’t Orange recognize psycopg? The main issue for some people was that despite having installed the psycopg module in their console, the SQL widget still didn’t work.
By: AJDA, Oct 26, 2017
Analyzing Surveys
Our streak of workshops continues. This time we taught professionals from public administration how they can leverage data analytics and machine learning to retrieve interesting information from surveys. Thanks to the Ministry of Public Administration, this is only the first in a line of workshops on data science we are preparing for public sector employees. For this purpose, we have designed EnKlik Anketa widget, which you can find in Prototypes add-on.
By: AJDA, Mar 9, 2017
Why Orange?
Why is Orange so great? Because it helps people solve problems quickly and efficiently. Sašo Jakljevič, a former student of the Faculty of Computer and Information Science at University of Ljubljana, created the following motivational videos for his graduation thesis. He used two belowed datasets, iris and zoo, to showcase how to tackle real-life problems with Orange.
By: AJDA, Jan 23, 2017
Preparing Scraped Data
One of the key questions of every data analysis is how to get the data and put it in the right form(at). In this post I’ll show you how to easily get the data from the web and transfer it to a file Orange can read. Related: Creating a new data table in Orange through Python First, we’ll have to do some scripting. We’ll use a couple of Python libraries - urllib.
By: AJDA, Jan 13, 2017
Data Preparation for Machine Learning
We’ve said it numerous times and we’re going to say it again. Data preparation is crucial for any data analysis. If your data is messy, there’s no way you can make sense of it, let alone a computer. Computers are great at handling large, even enormous data sets, speedy computing and recognizing patterns. But they fail miserably if you give them the wrong input. Also some classification methods work better with binary values, other with continuous, so it is important to know how to treat your data properly.