Questions tagged [orange]
Use for questions about Orange, the free, open-source, component-based, data mining and machine learning software suite.
170
questions
0
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0answers
7 views
Can data be CLR transformed in Orange?
Good day,
I would like to perform a CLR transformation of selected continuous data in Orange, is this possible? I don't see a CLR or log ratio transformation widget anywhere. Would I have to write my ...
0
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0answers
8 views
What is the default method for Orange to deal with missing values in random forest classification?
Good day,
I have built a random forest classification model in Orange, but some of my input data (all continuous) are missing. Up to 30% of the data for some variables are missing. I understand the ...
0
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0answers
19 views
Setting Up Training Data to Perform Image classification
I want to use Orange for an Image Classification project I am working on.
I have a training image set and separate .csv with columns corresponding to the image (by name) and classifier.
Wondering ...
3
votes
1answer
70 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 implement ...
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0answers
14 views
Latest version of orange crashing
Not sure why, but Orange is crashing on me quite often.
I only have 100K instances and 127 features. I've saved the dataset as a PKL on my C solid state C drive and trimmed it down using Orange to ...
1
vote
0answers
20 views
Import data from URL [closed]
I put a dropbox link to the URL box in the File widget and the data got imported perfectly. I saved the workflow that I would like to share with my team. But when I reopen the workflow, the URL link ...
1
vote
0answers
8 views
tsm_system_time extension not available on Azure Postgresql
The tsm_system_time extension is not available on Azure Postgresql. Anyway to use Orange without this extension on the server?
2
votes
0answers
15 views
How does orange encode categorical values for a neural network? What function does it do and how?
How does orange encode categorical values for a neural network? What function does it do and how? I can not find it in the code.
2
votes
0answers
38 views
Orange3 / python script / scipy interpn
I tried to create a learner using the Orange canvas script from the Python script widget, but I have not been able to find an effective example.
What I would like to do is:
1) Create a learner based ...
0
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0answers
19 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 ...
1
vote
0answers
21 views
Importing Orange Pickled Models in Jupyter
I am doing some testing with geoscience data and a few supervised methods in Orange. I have been saving these models as pickle models, but I would like to import them in my Jupyter notebook. How can I ...
1
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0answers
36 views
Regarding the number of iterations functionality
I have a query regarding the number of iterations functionality in Orange, which is available with several widgets.
For instance, in the neural networks widget, the maximum number of iterations is ...
1
vote
0answers
31 views
Manually changing coefficients of a model
Is there a way to manually change parameters of a model in Orange 3?
I have a dataset and trained a logistic regression model on it. Now, I can alter the coefficients (beta values) of the logistic ...
1
vote
0answers
32 views
Orange Biolab Pivot Table widget - missing
I downloaded most recent version of Orange. I can not find the Pivot Table widget anywhere. When right clicking on the search menu shown, it does not appear anything when writing Pivot Table phrase.
...
0
votes
0answers
25 views
How to use a Orange Machine Learning Model without Installing all of Orange
I created a model in Orange and now I would like to run the model in a piece of code inside a docker container. The problem is that I need to import and install Orange to run the saved model. To ...
1
vote
0answers
21 views
Can Orange read an excel file on Sharepoint or Onedrive?
I would like to share my Orange file through a team SharePoint site, including its linked (excel) datafile. Is this possible?
2
votes
0answers
31 views
Text Mining with Pubmed Widget Orange
When I was running the text mining I did not have an issue for 57 different searches. I was able to retrieve all of the records regardless of how many there were.
Until these 2 errors popped up.
I ...
1
vote
0answers
26 views
Term Co-occurence Matrix
I am doing text mining with Orange. How can I use my bag of words to create a term co-occurrence matrix? I am hoping to use this to plot some cool bigram and semantic networks.
1
vote
1answer
59 views
Orange release notes
What is the best way to understand changes made in new releases? For example, Orange 3.21 came out recently and I’m eager to understand any prominent fixes or modified features.
2
votes
0answers
27 views
coefficients from decision regression tree
I have a data on which I apply decision regression tree since it gives better numerical values as predicting house prices. I have almost 45 features in which price is the target value. With linear ...
1
vote
1answer
19 views
Comparing files (text sources) in Orange
What is the best method to compare text files in Orange?
How do I find the difference or similar between two texts and relations between main nodes?
0
votes
0answers
47 views
Why is the random forest confusion matrix for my test dataset 100% accuracy, when training data matrix isn't?
I am using the software Orange to undertake a random forest classification of geo-chemical data. I am trying to classify points as 0 or 1 based on whether it is a mineral occurrence or not.
My ...
1
vote
1answer
87 views
Predicting house price using linear regression
I'm trying to predict a house price using linear regression method. I gather the real data from a real estate website. I have some features and two numerical value in which the price is the target ...
1
vote
0answers
30 views
Use sentiment analysis on word level (aspect level)
I am trying to use Orange 3.20 Text Mining nodes to classify sentiments using a lexicon approach (either using the Method from Liu Hu or Vader).
After selecting the columns, I can see the documents ...
0
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0answers
16 views
Select rows using Biolabs Orange Textable or Text Mining?
I have very large tables of data that include a 'comments' column, which I am working with in Biolabs Orange.
I need to select only rows that contain a list of keywords (e.g., selected using the word ...
1
vote
1answer
45 views
How to create corpus file?
I have text data in .xlsx or .txt files.
How do I convert them to a corpus file (.tab)?
I would like to use the corpus file with Orange's text add-on.
0
votes
1answer
41 views
Does orange transfrom categorial variables into dummy variables when using hierarchical clustering?
I am using Orange to cluster a large amount of data consisting of three attributes. Each attribute only contains categorical unordered variables. My question is does Orange transform categorical ...
1
vote
0answers
19 views
Orange 3 - How can a String feature behave as a coefficient?
I'm studying machine learning with data. I have a table including features and a target variable which is the price as in the following.
When I want to figure out the coefficients to obtain linear ...
1
vote
0answers
27 views
Modify value of data in Orange
I am new to Orange and it seems very useful to do some EDA.
One question I have is can we use a widget to modify some values in the dataset?
For example, several numerical columns have some values of ...
1
vote
0answers
28 views
Unable to Print or Save Predicted Results in Orange?
I have applied some models (Logistic, Tree, SVM, Neural Network, etc) in order to predict my results. However, when I printed or saved my predicted results, I was unable to print the Complete ...
0
votes
2answers
72 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 ...
2
votes
0answers
20 views
Sorting in Heatmap in orange
I am new in this community and hope to find some hints. At the moment I am a little bit confused by orange. In the documentation it is shown, that you can sort within the heat map rows or columns, but ...
0
votes
0answers
21 views
How to analyze sets within Orange
Hi coming up with similar question like Q49352 - Clustering with sets as values
. I am looking for the right way to work with sets in Orange.
My set has a list of workflow steps from a workflow ...
1
vote
0answers
86 views
Why does a confusion matrix in Orange not show results?
I ran a neural network on a data set and when I checked the confusion matrix I got nothing but a message that says: Confusion matrix cannot show regression results.
1
vote
1answer
64 views
Connect Orange 3.20 to postgresql database
I installed orange 3.20 on windows 7. It works so far, the problem is connecting it to a server based Postgres database. While the connection can be made in the moment, when you try to load a table ...
1
vote
1answer
112 views
Launch Orange3 core dump for any >3.17
Updated to 3.19 using Anaconda navigator, from CLI I receive these messages
...
2
votes
0answers
69 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
...
1
vote
1answer
150 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 ...
1
vote
1answer
52 views
How to calculate a weighted Hierarchical clustering in Orange
I am doing my first cluster analysis with Orange (which I recently discovered and looks promising for this iterative and interactive process).
Apparently, there are several methods of creating ...
2
votes
0answers
272 views
What are the differences between Glueviz and Orange that come installed with Anaconda and how do they compare on performance and workflows?
I've been using Anaconda for quite a while now and these two libraries glue and Orange have sparked interest lately. I've ...
2
votes
1answer
30 views
Orange Import and process spectra time dependent/kinetics
I would like to import FTIR spectra that have been collected over time then use Orange to preprocess these as a group. I currently have the spectra as individual SPC or CSV files. How do I import the ...
1
vote
0answers
66 views
How do I get Text Mining on Orange version 3.18 [closed]
I have downloaded version 3.18 but there are no Data options for Text Mining (i.e. Corpus Viewer, Word count).
Is there a later version of Orange I should download or is there a specific Add On I ...
1
vote
2answers
52 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 ...
1
vote
0answers
82 views
tsne plot not showing all the labels?
My data has 13 labels in total. But in tsne plot, the figure just displays 10 labels with the other 2 labels as "Other" in the same color. How can I set the plot to show all of the labels? Thanks.
0
votes
0answers
21 views
Automatic chart axis grid
All the data I work with in Orange are on a 1 - 10 scale, but whenever I create charts and select 10 bins it always creates a scale as seen in the attached image. Is there a way to ensure that it ...
0
votes
1answer
44 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 ...
1
vote
0answers
52 views
Orange - Data does not have the same target predictors Error
Hi Data Science Community,
We are getting an error when importing new data.
The error says "Data does not have the same target predictors".
Why does this error ...
1
vote
0answers
24 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 ...
0
votes
1answer
36 views
Abbreviation in orange's contingency table
What do the scores ARI and AMI mean in Orange's contingency table?
0
votes
2answers
150 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
Collecting Orange3-Network
Using cached https:...
