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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Why Orange "Predictions" and "Test & Score" produce different results on the same data?

It is not very clear what is the difference between the following two schemes: From help docs: Test & Score widget: tests learning algorithms on data. Predictions widget: shows models’ ...
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1answer
77 views

Orange 3.15 GUI window size issue (Windows 8.1)

I'd just like to report an annoying GUI bug I am experimenting under Windows 8.1 using Orange 3.15. The work space available doesn't size up with the window making the use of the software quite ...
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1answer
35 views

Having Trouble Using Orange Data Mining in Linear Progression in Continuous Data

I'm having trouble with a simple task. I just imported an Excel sheet (CSV) into Orange. It recognized the features as continuous, but it couldn't run Linear Progression or Discretized on it. How ...
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77 views

Is there a way to weight instances based upon the values of a feature?

Is there a way to weight instances based upon the values of a feature? For instance for making a sample better resemble a population on certain parameters.
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1answer
3k views

Orange 3 - Feature selection / importance

I am using (and loving) Orange 3 for some projects at my school and have a question: When using Python and e.g. doing a RandomForest Classification, I can easily access the feature importances by ...
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1answer
202 views

Is there a network analysis tool built into Orange?

I am interested in a canned or built-in network analysis tool. Wondering if this is possible with Orange.
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972 views

How to preprocess data in a data table? (e.g. change a value in each row for some feature)

I Have a general question - how to preprocess data in Orange. E.g. I want to do something with each row value of some feature. How can I do this visually? And how can I do this via Python Script? So ...
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3answers
2k views

Unbalanced target variable in Orange, how do I balance it?

So I want to perform a predictive model to predict churn. I have 2 datasets, one with churn and the other without (so I can later perform predictions). The issue is that I think my Confusion matrix ...
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1answer
315 views

How to filter out numbers from text documents

I have several text files that have numbers in them. It would be very difficult to filter out all the numbers by creating a Stop Word txt file with every number from 1 to 2010, plus very inefficient ...
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1answer
53 views

Abbreviation in Orange's contingency table

What do the scores ARI and AMI mean in Orange's contingency table?
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1answer
349 views

Orange3 Image Classification

Is the attached workflow correct in case of training and testing with different data sets? Is the attached workflow considered "transfer learning" since my images are not related to the images that ...
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1answer
476 views

Orange3: Is it possible to get the total number of rows for a given column from inside 'Feature Constructor'?

I'm using the Orange3 gui and have been asked to generate basic plots where values relative to a "mean" or "Percentile Rank" are colorized. I looked in ...
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89 views

Function related to Orange GUI

I am a beginner to Orange GUI data mining software and I have some questions related to that. First, I would like to know if there is any search function so that I can search if a column contains a ...
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1answer
322 views

Orange wont allow me to set target for corpus

I would like to do a linear regression on an excel file. I have descriptions in one column and category in the other. I need to be able to set the target to do a linear regression. However, Orange ...
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1answer
53 views

Bioinformatics widget

Why is there are no Volcano-plot or MA-plot in bioinformatics widget?
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1answer
421 views

What does the Orange widget "Image Embedding" do exactly?

I would need to know what this widget does. What architecture does it use? What dataset has it been trained on? And so on.
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1answer
536 views

How do I get a word frequency list? Can't export from Word Cloud

I have a list of survey responses and want to analyze the frequency of words used. Using Orange, I've loaded the file into a Corpus, then Preprocess Text, then Word Cloud. The Word Cloud does not ...
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1answer
1k views

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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5 views

Which Orange Version for Geo With Point Clusters

A few versions back Orange Geo would show points as cluster areas (circles) or polygons bounding the cluster points. Does anyone know which Orange version this was? I vaguely remember Versions 3.22-3....
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1answer
17 views

Keyword extraction with Orange

I’m very new to using Orange Data Mining software and I’m having a hard time finding what I am looking for. I have 30,000 text files. I wish to use Orange to help me extract key words and phrases, ...
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13 views

Develop a Scorecard Model with Orange 3.30

I'm a super fan user of Orange 3.30, actually I've beeing develop some Collection Strategys and some othe of CLI in my actuall work, and everything has been OK with all the decisions that I've being ...
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29 views

Yahoo Finance Widget not in Time Series in Orange 3.30

When I add in Time Series version 0.3.12 in Orange version 3.30 "last version" the Yahoo Finance widget is not included. How do I add in the Yahoo Finance widget?
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16 views

CSV Import > Combine two rows and add new columns accordingly

I have some data that represents one event (a trade) that is broken up into two rows: Entry and Exit. I would like to combine this into one row with details about each. ...
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27 views

Is orange software available for Mac with m1 chip?

Hello I have the new Mac with m1 chip, do you know if I can use orange? or orange is still not available for this computers? thanks
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18 views

Get "Selected variable has too many values." when using Orange Data Mining's Pivot Table widget (implying too many column values?)

I am assuming there are too many columns in the (generated) pivot table when I get the "Selected variable has too many values." when using Pivot Table widget Is there a way to increase? If ...
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15 views

Associate another feature with hierarchical clustering - Patient Health Data

I am trying to learn data science. The tool I have is Orange datamining tool. I have following data set related to patient health. With this data set I can create a dendrogram and find diagnosis ...
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1answer
29 views

Remote image embedders fail with "no internet connection"

I'm following the Orange "Getting Started" YouTube tutorial and noticed that the Inception v3 image embedder (and any of the other remote services for that matter) all fail with the message: ...
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69 views

Yahoo Finance Widget not in Time Series in Orange

When I add in Time Series in Orange the Yahoo Finance widget is not included. How do I add in the Yahoo Finance widget?
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1answer
38 views

Data info: Orange data mining

I am trying to use the widgets from Orange Data Mining in the practical world. When do you use Data Info in Orange Data Mining set?
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44 views

Input and output layer activation functions of neurons in Orange

What are the activation functions of the neurons in the input and output layer of a neural network model from the Orange machine learning application?
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209 views

How to measure the Optimal-number of Topics & Topic-Coherence score in Orange's LDA Topic-Modeling?

I'm trying to build a suitable "code-free" Topic Model in "Orange Data Mining" software for the experimental part of my Thesis, in order to analyze the themes and trends of ...
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23 views

Loading data directly from BigQuery to Orange

I would like to ask you if there is possibility in Orange to load to it data directly eg. from BigQuery? I added block "Python script" to the flow and my script looks like that: ...
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1answer
67 views

Handling Imbalanced Datasets in Orange

I work in the medical domain, so class imbalance is the rule and not the exception. While I know Python has packages for class imbalance, I don't see an option in Orange for e.g. a SMOTE widget. I ...
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30 views

ANOVA Feature Scoring

in order to score features, in ORANGE, using ANOVA scoring, the features should have a normal distribution? Thank you, J
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45 views

Orange Data Mining - Data Sampler Widget

In the Data Sampler widget, there is an option for Cross validation for which one fold can remain unused. Is this option for nested cross validation alternating which fold you hold back?
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15 views

Analysis of table to make compressing model

I have a table with hundred of entries in this style: //HEADER//CODE1//decimals_here//CODE4//decimals_here//CODE3//decimals_here//CODE5//decimals_here//ENDING// I ...
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1answer
325 views

Error using corpus widget in Orange v 3.25.0 text mining and no import document option?

I am experimenting with Orange data mining tool. When I use the 'Corpus' widget from the text mining section it gives me the error: [![Corpus widget error][1]][1] I ...
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1answer
126 views

PCA and orange software

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 ...
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1answer
134 views

Orange Geo Map does not show background map

We are running Orange with our students and most of them are having problems with running the Geo Map widget. It does not show any background map. In the bottom an error message is displayed: ...
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0answers
88 views

Orange widget with OpenCV setMouseCallback

I am designing an Orange Widget for facial recognition. I would like to draw a rectangle around faces captured in video by setting mouse events with ...
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1answer
297 views

How to change the threshold value in orange?

How can I change the threshold value for each classifier? In the ROC analysis curve we are allowed to remove the tick from "default threshold"
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1answer
137 views

Twitter API widget

I am using the Twitter API. The Orange widget for Twitter works fine if we do a search by content. However, it throws an error if you search by author. ...
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1answer
142 views

Filtering detail table based on selection in summary table in Orange 3.11

I'm rather new to Orange, so apologies in advance if I'm missing something obvious or am trying to fit a square peg in a round hole. I have two files, Summary and Detail, that I'm importing into an ...
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1answer
782 views

How to use SVM in Orange

How to use SVM in Orange for sentiments analysis? We will generate sentiments using sentiments analysis widget but now how to use SVM and how to teach SVM in Orange? i am use xlsx file format then it ...
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1answer
349 views

Orange3 does not show Geo Map tool on OS X

I am using Orange 3.3.11 and I cannot find "Geo Map" widget on OS X. But the documentation says there is such a widget. How can I find this widget?
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1answer
46 views

Score for Ranked plots using scatter plot widget

I'm using orange 3 and when I Score plots using the scatter plot widget how do I view the numerical score associated with the ordered list of plots. Did that feature get removed with the upgrade from ...
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1answer
98 views

Import Orange 2.7 canvas in Orange 3 [closed]

I have a saved canvas I created in Orange 2.7. I just installed Orange 3 and opening the old canvas gives multiple "UnknownWidgetDefinition" errors. I gather that the naming/location of some widgets ...
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1answer
2k views

Do statistical test with orange between data

I'm learning orange and I'm looking to performe some statistical test on my data. The test I usually do are z-test, t-test, chi-square test and Anova. Can I use a widget to do these or should I do a ...
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2answers
278 views

What is the correct file extension for Orange image embedding?

I am using Orange data mining in order to create a facial recognition workflow with some prototype widgets. To do this, I am trying to import some images (test data) using the import widget. My ...
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1answer
127 views

How to connect dots with lines in Scatter Plot or some other Plot?

Subj. Given the following in Scatter Plot: . . . . How to get something like: . / \ .__. . ?