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Questions tagged [orange]

Use for questions about Orange, the free, open-source, component-based, data mining and machine learning software suite.

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Orange, K-means clustering, memory error

I have a dataset of over 67 000 records, and I'm trying to run a k-means cluster analysis on that. Orange returns a memory error. The data is in an excel file, but I also tried to load it from a csv. ...
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1 vote
1 answer
940 views

Overcome memory limitation when downloading from database into Orange

I would like to run the association rule mining algorithm of the Orange library on a dataset that is stored in a PostgreSQL database. The table 'buildingset' contains the itemsets for each user, thus ...
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4 votes
1 answer
581 views

In Orange, is it possible to analyze or visualize real time, streaming data?

Using orange, I would like to be able to do real time analysis or visualizations on streaming data. I would appreciate any input on the matter!
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1 vote
1 answer
53 views

Discrete Values Matrix: Select Rows and Scattered Plot problem

I ran in a somewhat basic problem with Orange 3.3.1... but wonder if this is a bug or something I don't understand: I have a Matrix, all with discrete values. I select Columns, that goes ok Select ...
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1 vote
2 answers
352 views

Text Mining error

I'm trying to get used to text mining using orange. I set up a very easy workflow loading a corpus (tab separated text file containing 10 entries), using a corpus viewer that shows my data correctly ...
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4 votes
1 answer
154 views

Is it possible to create feature groups in Orange?

Background: I am trying to use Orange as to classify if a patient has TB based on their coughing sounds. In the dataset, there are say 100 patients and for each patient we have 10 coughs. For each ...
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3 votes
1 answer
557 views

Can I run Orange widgets from normal Python scripts?

I'd like to do normal machine learning with Python and Sklearn, but occasionally use the nice graphical widgets or Orange for presentation. Is this possible?
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  • 355
3 votes
1 answer
662 views

How Orange makes decision about declaration of a meta attribute

I wonder how Orange decides which attribute is declared as a string? I have few discrete attributes in Excel, which I can't use as Orange does not recognize them as discrete. Have tried export excel ...
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  • 31
2 votes
1 answer
515 views

Orange 3 Heatmap clustering under the hood

I have recently used the heatmap widget in Orange 3. All the documentation says is "Clustering (clusters data by similarity)". Is this using hierarchical or k-means or some other type of clustering? ...
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  • 123
4 votes
2 answers
3k views

Question about (Python/Orange) Apriori associative algorithm

I'm trying to wrap my head around Association rules and frequent itemsets. So I threw my data in, instead of the samples one and sometime it works, sometimes it doesn't. ...
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  • 183
1 vote
0 answers
94 views

SPSS style custom tables in Orange

Is there a way to draw custom tables like in SPSS where you put some attributes to rows and some to column to visualize clustering results?
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