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Questions tagged [orange]

Orange is a component-based data mining and machine learning software suite, featuring friendly yet powerful and flexible visual programming front-end for explorative data analysis and visualization. It includes comprehensive set of components for data preprocessing, feature scoring and filtering, modeling, model evaluation, and various exploration techniques.

Orange is a free and open-source component-based data mining and machine learning software suite, featuring a visual programming front-end for explorative data analysis and visualization. It includes a set of components for data preprocessing, feature scoring and filtering, modeling, model evaluation, and various exploration techniques. It is implemented mostly in Python and Cython, leveraging the cross-platform Qt framework for its GUI. Orange is distributed free under GNU GPL.

It is maintained by the Bioinformatics Laboratory of the Faculty of Computer and Information Science, University of Ljubljana, Slovenia.

357 questions
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4 answers

how to run easy_install using a particular python version

I have 3 python versions, I want to easy_install Orange using the second version. How can I do this? Unnecessary info: 2.1 in /usr/bin/python 2.6 in /Library/Frameworks/Python.framework/Versions/2.6/bin/python 3.1 in…
Lavanya
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Converting Pandas DataFrame to Orange Table

I notice that this is an issue on GitHub already. Does anyone have any code that converts a Pandas DataFrame to an Orange Table? Explicitly, I have the following table. user hotel star_rating user home_continent gender 0 1 …
hlin117
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1 answer

How to handle the connection event of widget output in Orange3?

I am developing an add-on widget for Orange3. Is there any way to handle the event of connection/disconnection of widget output? I would like to postpone heavy calculations for one of the outputs until this output is connected with the input of…
Dmitriy Kalugin-Balashov
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3 answers

Can't install Orange: "error: command 'clang' failed with exit status 1"

I am trying to install Orange on my Mac OS X 10.7.3 (Lion) and I keep getting an error when using either pip or building from source. First, I was getting an error that read: error: command 'gcc-4.0' failed with exit status 1 I have Xcode 4, which…
Steve L
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3 answers

Orange vs NLTK for Content Classification in Python

We need a content classification module. Bayesian classifier seems to be what I am looking for. Should we go for Orange or NLTK ?
philgo20
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7
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2 answers

How to connect Orange SQL Table widget to Remote SQL Server

I just installed Orange 3.3.9 on my Windows 7 workstation. I'm trying to connect to a remote MSSQL server instance using the "SQL Table" widget in Orange. When I double click the SQL Table widget I get what appears to be a dialog box to configure…
user1038638
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2 answers

How do I create a new data table in Orange?

I am using Orange (in Python) for some data mining tasks. More specifically, for clustering. Although I have gone through the tutorial and read most of the documentation, I still have a problem. All the examples in docs and tutorials assume that I…
George Eracleous
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Orange data mining: Skip first lines in multiple files

I use Orange 3.22. The first step in my model is to load about 150 files with Spectroscopy.Multifile. In all files the relevant information starts only from line 22. In Data.CSVFileImport I can skip single lines. How can I skip the first 21 lines…
Lothar Ulferts
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5
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2 answers

imputing missing values using a predictive model

I am trying to impute missing values in Python and sklearn does not appear to have a method beyond average (mean, median, or mode) imputation. Orange imputation model seems to provide a viable option. However, it appears Orange.data.Table is not…
sedeh
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Lasso Regression with weighted input in Python

I am interested in doing Lasso Regression technique in Python. However, I would like to weight the input data for the algorithm. Can you suggest some libraries that can perform the Lasso regression taking into consideration the input weights? I…
Marco
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Am I using PCA in Orange in a correct way?

I am analysing if 15 books can be grouped according to 6 variables (of the 15 books, 2 are written by an author, 6 by an other one, and 7 by an other one). I counted the number of occurrences of the variables and I calculated the percentage. Then I…
ACIU
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How to run Orange3 after Installing?

I am trying to install and run Orange3 on my ubuntu 15.10 machine. I followed these instructions and installed Orange3. After the installation, When I run python3 -m Orange.canvas This command, It opens up Orange GUI and works perfectly. But when I…
Sankha Karunasekara
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0 answers

Orange custom widget

I am trying to get the example given in Orange Development Tutorial to work with version 2.7. However, while I am able to test my widget from the Python shell, I can't get the custom widget that I generate to show up in the Orange Canvas GUI. All I…
Rebelzane
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4
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2 answers

Association rules with pandas dataframe

I have a dataframe like this df = pd.DataFrame(data=[980,169,104,74], columns=['Count'], index=['X,Y,Z', 'X,Z','X','Y,Z']) Count X, Y, Z 980 X,Z 169 X 104 Y,Z 74 I want to be able to extract…
dooms
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Orange Data Mining: Change data type (e.g from continuous to discrete)

I have loaded data in Orange using a CSV file, and some columns are being automatically detected as continuous (C) while in reality they're ordinal dicrete (i.e. may have integer values from 1 to 5). I was expecting widgets such as the "Edit Domain…
Rodrigo Vieira
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