Questions tagged [orange]
Use for questions about Orange, the free, open-source, component-based, data mining and machine learning software suite.
216
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Where do I draw the line at unbalanced datasets?
I have a problem where I am to construct a classification variable Yes/No based on another feature's value. We are interested in the Yes class in this case. I am told to use 10-fold cross validation.
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26
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Orange: Linux (WSL2): GLX 1.3 or later is required
When I create a Word Cloud widget and in other cases, I get the above error.
Do you if there is a way for me to install GLX 1.3 in Linux? I have not found good references (googling) elsewhere.
Below ...
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8
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Split a column in rows in Orange
I have an input dataset like
Frank Group1::Group2::Group3
Mark Group1
Joe Group2::Group3
and I have to transform it to
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10
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How to use distance matrix from csv in Orange for network explorer *without* using distance tool?
It seems the only way to create a network from distances is to use the distances tool, so I have to connect my distance matrix in csv format to the distances tool in order to create a network, which ...
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25
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At what dataset size does Orange performance begin to get impacted?
I can't find any information on max size for data uploaded to Orange before it starts to get bogged down. This information would be helpful to know so that I can minimize how much I need to sample.
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TIMES SERIES add-on v0.4.0 issues installing?
Does anyone else encounter problems with the TIME SERIES add-on v0.4.0 in ORANGE?
Mine says it's installed but not showing in my pane??
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7
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Does "Apply Domain" only work with PCA?
I am trying to use nonlinear manifold learning with Apply Domain. Documentation and examples show use of Apply Domain with PCA, and it works fine.
However it doesn't work when using Manifold ...
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10
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Orange v3.32: Accuracy and precision not showing up
As explained in the orangehelp files the test and score widget would provide an accuracy colum like "CA". I only have MSE RMSE MAE and R2 besides the times. Furthermore, the predictions ...
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Can orange datamining python script in_data only one widget table?
If you receive in_data from two orange widget tables with an orange Python script, you don't know how to read them like in_data1, in_data2.
Can I in_data only one table?
Please tell me how to import ...
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32
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Orange3 and OCR Help
I would like to be able to utilize Orange to OCR pictures with pytesseract.
I have been able to create simple code in the Python Script widget in order to read one image at a time, but I want to be ...
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7
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Orange Hangs After Geo Widget Install
I removed the latest Orange on my system along with all traces of Python. Then successfully installed Orange 3.18 (I'm looking for the original Geo module that drew circular clusters). However, when I ...
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15
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PCA components don't look orthogonal on scatter plot
I'm playing around with PCA in Orange. I painted 10 data points and look at their PCA components. The Data Table suggests they should be orthogonal in the (x, y) coordinates as the dot product is 0.
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- 115
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35
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Orange's Results are not reproducible
I've been watching a few training videos from Orange here and attempted to reproduce the process. They used iris dataset for classification task. When I compared my confusion matrix to theirs, I didn'...
- 115
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29
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Setting the Dates properly in Orange Times series module
I'm successfully using a Orange Time Series model to make Arima model predictions.
I'm struggling to get the Forecasts to show at the end of series in a line chart. a 4 period forecast shows a series ...
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44
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Orange Import dataset which has the feature on rows and instances on the columns
How to import a flipped dataset into the Orange 3.26? By flipped dataset I mean a dataset which has the features as rows and the instances as columns.
I tried to transpose the data after imported but ...
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13
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Orange Document Map
I've used the Document Map widget in Orange to identify all countries mentioned in the corpus. There appears to be a bug in the document map: On the map itself some countries are not colored (high ...
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21
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Scraping Twitter Hashtags with Orange
I'm new to data scraping, and I would like to know if there is a way to scrape from multiple Twitter hashtags at the same time using Orange?
I've been trying to scrape from #covidvaccine and #gst at ...
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Text Mining - Statistics Module Issue
I'm using Orange Canvas for a text mining study.
This issue seems to appear once I migrated to more recent versions. When I am trying to use Statistics (from Text Mining) I can only use/add a limited ...
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9
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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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146
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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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27
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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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101
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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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26
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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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90
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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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34
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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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25
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Why is a column detected as text and not as categorical when opening excel file?
I have the following values in an excel sheet
Aguascalientes
Baja California
Baja California Sur
Campeche
Chiapas
Chihuahua
Ciudad de México
Coahuila
Colima
Durango
Estado de México
Guanajuato
...
2
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1
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64
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Difference between DataSampler and TestAndScore widgets in Orange
I'm trying to figure out the difference between using the data sampler to get a 70/30 train/test split and directly using the ...
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66
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What type of 'Naive Bayes' algorithm is provided by Orange?
I've been using Orange for a while to rapidly prototype a few classification models. One of the ones I've been using is 'Naive Bayes'. If I understand correctly, there are a few types available based ...
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39
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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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65
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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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132
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Measuring Topic-coherence score & optimal number of topics in LDA Topic Modeling in Orange data mining
I'm trying to build an Orange workflow to perform LDA topic modeling for analyzing a text corpus (.CSV dataset).
Unfortunately, the LDA widget in Orange lacks for advanced settings when comparing it ...
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86
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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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133
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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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110
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Classification with Orange error "test and train datasets have differents target variable"
m having a problem on the widget "Test and score" used for classification. Im doing a classification on images and i would like to use the widget "test and score" with the option &...
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What is the optimal method to evaluate clusters further?
Supervised learning is straightforward on medical data using Orange, but unsupervised learning is more challenging. I selected a data set based on Florida County Health Ratings where individuals rated ...
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216
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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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32
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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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406
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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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15
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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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54
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whether to use normalization while performing PCA?
I have an excel file containing a table where I registered the frequency of three linguistic phenomena in 72 poems. Since the poems have different lengths I normalized the results dividing each value ...
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24
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Creating API For Accessing New Website
Is there a way to add a API in Orange Data Mining Tool to access a new website? An example would be can I create and add an API for CNN or MSNBC or FOXNEWS? Currently in Orange in the text mining add-...
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42
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Data table manipulations in Orange
I am having some issues doing operations on my data table in Orange.
I need to split my table into two different tables, being a table containing all the instances for y = yes and a table containing ...
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134
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Stratified K Fold Cross Validation in Orange: python script
I am using Orange to predict customer churn and compare different learners based on accuracy, F1, etc.
As my problem is unbalanced (10% churn - 90% not churn), I want to oversample. However, when ...
2
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1
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313
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Cross validation for unbalanced dataset using Orange data mining tool
I am using the Orange data mining tool to build and analyze models (decision tree, ANN, ...) predicting customer churn. As this is an imbalanced class problem (10% churn, 90% not churn), I need to ...
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294
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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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1
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59
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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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158
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Using if statement as a model in orange
I am seeking to evaluate logistic regression against a rule-based (nested if-else statements) classification in Orange.
The steps I've taken to investigate this are as follows:
I could not identify ...
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1
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166
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Extracting text into columns
I have a set of customer reports, each is in ms word file. they are all in a similar pattern, for example they start with Name: --, Age: --, Date: --, etc...
is there a way to extract particular ...
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76
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Random Forest feature selection
I am using Random Forest model for feature selection on data with bias. I have tried the Random Forest model on my features by increasing number of trees and found the feature importance moving.
Could ...
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63
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Orange ROC analysis widget [closed]
ROC analysis widget has an option to change prior target class probability. I'd like to know, when and how it should be used. Playing with it changes the slope of iso-performance line. Each classifier ...
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