Questions tagged [orange]
Orange is a free and open-source component-based data mining and machine learning software suite, featuring friendly yet powerful and flexible visual programming front-end for explorative data analysis and visualization. It includes a comprehensive set of components for data preprocessing, feature scoring and filtering, modeling, model evaluation, and various exploration techniques.
2
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0answers
15 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
...
0
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0answers
13 views
would it be possible to add mysql as an interface, please [closed]
lots of data in mysql. Cannot change. Very much want to use Orange. Could you add an interface?
1
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1answer
30 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
24 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
28 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 ...
1
vote
1answer
14 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
36 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
33 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 ...
0
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0answers
22 views
why tsne plot can not show all the labels
My data have 13 labels in total. But in tsne plot, the figure just show 10 labels with the other 2 labels setting as "Other" in the same color. How to set the plot to show up all the labels? THX.
0
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0answers
17 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
27 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
votes
0answers
57 views
Error when launching Orange 3.18
Any thoughts on how to resolve this following error which is thrown each time Orange is starts?
...
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0answers
24 views
Orange Data Mining Software [Data does not have the same target predictors]
Hi Data Science Community,
We got some errors when importing new data.
Error says like "Data does not have the same target predictors".
I would like to ask why does this happen and how to fix that ...
1
vote
0answers
20 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
24 views
Abbreviation in orange's contingency table
What do the scores ARI and AMI mean in Orange's contingency table?
0
votes
1answer
65 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:...
0
votes
1answer
140 views
How do I start Orange [closed]
I installed Orange via conda install orange3
I see the package installed in Anaconda3 / pkgs directory however there is not desktop icon nor can I find Orange via ...
0
votes
1answer
33 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"
1
vote
0answers
33 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 ...
1
vote
1answer
28 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:
...
0
votes
1answer
48 views
Twitter API widget
I have created a API in Twitter. The orange widget twitter works fine if we do a search by content. But, it throws up an error if you search by author
The error is: Api error(Twitter error response ...
0
votes
1answer
116 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 ...
1
vote
0answers
93 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 ...
1
vote
0answers
23 views
How do I add error bars to a plot in Orange?
I'm trying to plot my data and see if it's comparable, but for this I need error bars (to see if the difference is within the margin of error).
I cannot for the life of me figure out how to do error ...
2
votes
0answers
24 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 ...
2
votes
1answer
40 views
Does Orange scale the data automatically for the linear regression with Ridge regularization
I'm using the linear regression tool with the Ridge regularization. To use the Ridge regularization I have to scale the data first. Does Orange scale the data automatically? I can't find any ...
1
vote
0answers
82 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 ...
1
vote
2answers
440 views
Orange Error - Installing Text Add On
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 ...
1
vote
1answer
29 views
How do I change the colours on scatter plots? [closed]
Probably an obvious one, but I just cannot figure it out.
I know there's a drop down menu on the left that allows you to decide what to colour, but I cannot seem to find a way to change what colour ...
1
vote
0answers
22 views
Using 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 ...
0
votes
1answer
53 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 ...
0
votes
1answer
58 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 ...
2
votes
2answers
562 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 ...
0
votes
2answers
38 views
Function related to Orange GUI
i am a new beginner to Orange GUI data mining software and i have some question related to that.
First, i would like to know if there is any search function so i can search if the column contain a ...
1
vote
0answers
27 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 ...
0
votes
1answer
53 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 ...
1
vote
1answer
41 views
Dataset with disproportionately more of a single label than any other
I'm using the data analysis software Orange to analyze rows of data with labels $\{H, T,L\}$. $T$ is the neutral state of the system I'm trying to model so data is almost always labeled with $T$. ...
1
vote
1answer
205 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 ...
1
vote
2answers
54 views
Elastic net regression in orange
The penalty term for Elastic regression is written as
How are the values of lambda's calculated if the slider is moved from the right to the left.
I have read most the material available on the ...
0
votes
1answer
84 views
Orange imports numeric features as categorical (“file” widget)
Why are some of my numeric features not being recognized as 'numeric' types AND why can't I reclassify them?
I can't share my CSV here but I can assure you those features are indeed numeric (I use ...
2
votes
1answer
40 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?
1
vote
1answer
74 views
Orange wont allow me to set target for corpus
I need 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 doesn't ...
3
votes
1answer
170 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:
...
0
votes
1answer
32 views
1
vote
2answers
112 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 ...
1
vote
0answers
24 views
AUC calculated for a given target class while there are more than 2 groups to compare with
I have used random forest classifies to classify 4 groups (or class). For each group (target class) the AUC has been generated. Using "Test&Score" (from orange) provides AUC for each target class (...
1
vote
2answers
45 views
How to process multivariant questions in Orange
can you explain how to process multivariant questions in Orange? For example:
I have sociological survey database. Among the others there is question:
How would you like to spend your weekend? (pick ...
1
vote
1answer
34 views
Orange file import method for raw binaries
I tried to add a binary import method to
class FileFormat(metaclass=FileFormatMeta)
in io.py, but gave up trying to adapt a copy of the CSV method since so much is specific to CSV issues and the ...
3
votes
1answer
64 views
F1 calculation test
The formula for F1 harmonic mean F1 score is
F1 =2*(precision*recall)/(precision + recall).
The values under the column F1 don't agree with the formula. Any answers
1
vote
1answer
31 views
Orange reading in new features from Tab-Delimited File
In my tab delimited file I have 65 features and 1 target variable that are numerical and continuous. My data is supposed to be used for regression models. There should be 65 features and 1 target ...
