Questions tagged [orange3]

Orange is a component and widget based Data Mining software developed by the University of Ljubljana.

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1answer
227 views

Create new column in Orange using Python Scripting Widget

This is a fairly basic question. How do you create a new column in Orange - based upon an existing column? For example: NewCol = 2 * ExistingColumn or ...
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1answer
330 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
173 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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9 views

I don't understand the answer on this site for installing the network option in Orange 3.28

The instructions for using Options>Settigns>Add-ons in the post below are confusing. Orange Error when installing Network Add On Is there a version of the "Network" addon that will ...
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1answer
75 views

Removing duplicate rows in orange3

In Orange3, I have a table with row duplicates. How can I simply remove the duplicated rows to keep only one copy of each? I feel like Orange3 is great but cannot do simple tasks. I hope I just did ...
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75 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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27 views

LDA in Orange Linear Projection widget?

I'm struggling to get an LDA in Orange 3.28 (GUI). Using the good'ol iris dataset, loaded from the dataset widget: The data, as you can see, is loaded as it should and has "iris" set as ...
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1answer
2k views

What is Orange all about?

I read a lot about Orange here in the forum. I know that it is a software developed at the University of Ljubljana. I guess it has some kind of GUI which makes it a "cheap and easy" way to ...
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29 views

Does Orange allow you to change the decision threshold in modelling widgets?

I can't seem to find an option with the modeling widgets for Orange to allow changes in the decision thresholds. Is this option available?
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1answer
16 views

Out-of-bag error in Orange3

There is some way to see the out-of-bag error in Orange3? The widget Test and Score only reports mean squared error, root mean square, mean absolute error, coefficient of determination and root-mean-...
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2answers
228 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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2answers
267 views

How do I integrate Github files to Orange for ML?

I am currently trying to make a facial recognition workflow with Orange but since the widgets are still prototypes they are not all available in Orange. I found the Github files for the widgets but ...
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1answer
253 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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0answers
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
135 views

How can I “export” a model from Orange once I have prototyped a solution?

Using Orange, I would like to use the underlying python model within the control system of my device. The device is a simple machine which is not connected to the internet. My intent is to use the ...
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1answer
119 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
354 views

Modify value of data in Orange

I am new to Orange and it seems very useful for conducting exploratory data analysis. One question I have is - can we use a widget to modify some values in the dataset? For example, several numerical ...
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2answers
74 views

Clustering with sets as values

I have gathered a large amount of qualitative data and am now looking to cluster it so as to make sense of it. For this, I am using Biolab's Orange. In my data, specific values may co-occur in a ...
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2answers
738 views

Orange Error when installing Network Add On

Command failed: python python -m pip install Orange3-Network exited with non zero status Environment Windows 10 Python 3.7 Orange 3.17 Detail Log Data ...
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2answers
2k views

How to do multivariable regression in Orange3?

Orange3 contains a number of regression widgets, but they all seem to be univariable i.e. one independent variable that correlates to one dependent variable. When I have more independent variables ...
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1answer
98 views

Orange Web Services - Problems installing imblearn module for Python Script

I am trying to implement SMOTE in Orange Web Services, but having troubles with the imblearn module. Following screenshot is from Orange Python Script widget: ...
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1answer
106 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
31 views

Geo Add-on Choropleth Widget not found

I am trying to create a Choropleth map using the Chorolpeth widget from the Geo Add-on in Orange. However, this widget is not appearing? Any ideas? My current version: Orange version 3.24.1 for ...
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1answer
132 views

Visualizing categorical data in scatter plot with Orange (version > 3.18)

Why in Orange versions after 3.18 is not possible to visualize categorical data in Scatter Plot widget?
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1answer
46 views

Suggestion for a better way to organize data to generate frequent item-sets?

I have a data of a bag of words in a document. The data has 3 columns: {document number, word number, count of the word in the number}. I am supposed to generate ...
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1answer
119 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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1answer
23 views

Cluster Hyperspectral Images in Orange

Orange has a hyperspectral dataset called "liver cirrhosis" and you can visualize the hyperspectral image using the hyperspectral image widget. However, I would like to perform various ...
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1answer
352 views

Installing Orange Package with older Python Version?

I am trying to install an Add-on package from GitHub that contains prototype widgets for Orange Data Mining. I am trying to install it from the GitHub page found here. I am using the following ...
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1answer
329 views

Partial least squares (PLS)

I am relatively new to Orange, trying to utilise it for linear regression, in particular partial least squares (PLS). My statistics knowledge is in the moment not good enough to know whether I could ...
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0answers
59 views

Orange data mining: Balancing data set using imblearn code

I am using an unbalanced dataset. I wanted to oversample my dataset using a python script (Scripting code for class imbalance in Biolabs Orange). However, it still gives me an error ...
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1answer
1k views

How to properly predict date using Orange 3

First of all - I'm new to all of this. I'm trying to create a model to predict the release of ios 12 based on previous years. I've got an excel that has a format like this: ...
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1answer
287 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
164 views

Addition and subtraction of values of two columns when using Orange GUI

I am a new user to the Orange GUI. I would like to know if there is anyway I can add or subtract two columns and then return the result as a new column?
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2answers
82 views

Elastic net regression in orange

The penalty term for Elastic Net Regression is written as: $\lambda_1 \|\theta\|_1 + \lambda_2\|\theta\|_2^2$ How are the values of lambda's calculated if the slider is moved from the right to the ...
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1answer
2k views

Orange Data Mining load saved models

I am planning to use the Orange Data Mining Tool for easy data exploration and model generation. What is still unclear to me is: after finding a good model, what can I do with it, how can I use or ...
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1answer
76 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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0answers
41 views

Orange cost sensitive classifier

How do I go about applying cost sensitive classifier in Orange? I need to get a confusion matrix and predictions for a specified ratio of FP and FN. ROC curve widget lets me choose that ratio but ...
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2answers
82 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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2answers
5k views

Classifying Data in Orange: What's the difference between 'Features', 'Target Variables', and 'Meta Attributes'

I've been looking for a more visual way to calculate statics on my spectroscopy data. Python's Orange Canvas seems like it might be a great alternative to Pipeline Pilot, but I'm having trouble ...
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1answer
345 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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0answers
125 views

Is there a way to use Orange3 on a remote server or in the cloud? [closed]

My question there is a way to run the Orange, not on a local computer, but on a remote server, even in the cloud? My notebook has only 8GB memory and limited number of CPU core, which is insufficient ...
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1answer
56 views

Changing colors on Orange Scatterplot widget? [closed]

This is probably has an obvious solution, but I cannot seem to figure it out. I have this scatterplot below: I know that there is a drop down menu on the left that allows you to decide how to color ...
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2answers
3k views

Orange Error - Installing Text Add On [closed]

I am trying to install the Text add-on for Orange, and I am getting the following error on my Macbook. What's interesting is ...
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0answers
341 views

How to create a for-like loop in Orange3

This question has been asked before here but never received an answer. I'm planning to write a bunch of components that do some processing on single images. However, I have many such images and would ...
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0answers
39 views

Is it possible to get the mean coefficent of regression after “Test & Score” in Orange using cross-validation?

The cross-validation devides the data into n folds and measures the accuracy n times therefore. The displayed RMSE in the Test & Score tool is a mean of all n runs, I think. But is it possible to ...
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0answers
304 views

How to run Orange from the source code? [closed]

I'd like to contribute to Orange. To get used to the code, I tried to run the source code directly under Windows 10, so far without success. I have numpy and scipy installed, and the source code for ...
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1answer
463 views

We are using PostgreSQL to store big data and are concerned it may crash the on-board Neural Net. Any thoughts?

We have figured out how to write Big Data to our PostgreSQL database. We would like to run this (normalized) data into the on-board Neural Network in Orange. Our lead programmer said he thought Orange ...
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0answers
207 views

SQL Server credential doesn't work from Orange [closed]

I am trying to have a SQL Table widget in my Orange canvas, which is connected to SQL Server. I have installed pymssql, and in the SQL Table dialog, I do get an ...
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1answer
51 views

Abbreviation in Orange's contingency table

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

Bioinformatics add-on [closed]

I would like to ask you why there are no Volcano-plot or MA-plot widgets in bioinformatics add-on already? As I can see it in the youtube video tutorial (two years ago, version 3.3). In the latest ...