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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.

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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 ...
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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 ...
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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 ...
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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 ...
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2answers
145 views

Orange Changes the data type

I have a column as month in my excel data set, when i load the data in the file, orange changes it to some numerical values.. Help! I want the Month as it is. Tried changing the value type as short or ...
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2answers
270 views

Text Mining error

I'm trying to get used to text mining using orange. I set up a very easy workflow loading a corpus (tab separated text file containing 10 entries), using a corpus viewer that shows my data correctly ...
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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
3
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1answer
125 views

Is it possible to create feature groups in Orange?

Background: I am trying to use Orange as to classify if a patient has TB based on their coughing sounds. In the dataset, there are say 100 patients and for each patient we have 10 coughs. For each ...
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1answer
1k views

Export Python Code from Orange

Since Orange is just running python code under the hood... is it possible to set up and do my analysis in Orange but then export or output the underlying code for documentation or replication?
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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 ...
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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: ...
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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 ...
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1answer
72 views

Feature construction widget on Orange 3.13

I got stucked with this widget... I am an absolute beginner and I am now working with Orange software for my thesis with logs and core data. I need to combine different features to compare them. What ...
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1answer
350 views

Database missing extensions:tym_system_time,quantile orange widget error

I'm working with the orange data mining tool. In most of the examples data taken from files or google sheets links but in the blog link they given that we can take data from postgresql database ...
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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:...
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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"
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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 ...
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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 ...
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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 ...
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1answer
198 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
50 views

Orange3 Windows 10 Edit Plots?

In Orange3 64-bit for Windows 10, is it possible to edit plots, graphs, charts, and diagrams interactively? If not, will this feature be added? For example, at minimum, I would like to increase the ...
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1answer
66 views

Has anyone gotten the Orange3 Prototype Widget “Significant Groups” to work?

The Prototype Widget "Significant Groups" would be a great help in hypothesis testing. Has anyone gotten it running??? I have tried just about everything. Whenever I try to "Compute", I get the ...
3
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0answers
26 views

Image grid - labels?

I was wondering if labels could be visualized below images in the image grid tool in Image Analytics? I know, this feature might be not terribly useful for images in general, hence unlikely to be ...
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 ...
2
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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 ...
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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 ...
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0answers
32 views

Orange “Scatter plot” widget to excel, best way

So I have chosen "Orange" for my research as a main app for clustering ant it's analysis. Excel 2016 is primary app used for dashboard (via "pivot table"). Problem - how to add graphs from "scatter ...
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0answers
326 views

Use Feature Constructor in Orange to extract number from string?

I would like to use the Feature Constructor to extract numbers from a column of strings. ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 (...
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0answers
20 views

Orange Feature Construction widget: Inability to see formulas while file sharing

Our team is sharing Orange "work bench" files across team members. Unfortunately, we find the Feature Construction widget does not display code consistently (nor is there any "x" to indicate an error)....
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0answers
134 views

Classification using Orange 3

In Orange3 while only using its widgets, without writing Python code, I’ve implemented the following typical machine learning processes Train a training set, (1 file) Validating a validation set (e.g....
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0answers
51 views

Orange: Predictions widget on same data gives different results

I have built a simple tree predictor and then applied this to a new set of data. This was giving a very different probability distribution so I tested connecting the same training data and comparing ...
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0answers
80 views

Limitations while using orange for clustering

I have tried clustering using kmeans in Orange but it looks like there are certain limitations as listed below, - Supports up to 5000 records only - no. of clusters can be only 30 Can someone please ...
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0answers
49 views

Are interactive command lines from orange3 possible

I wonder whether orange3 allows to get commands that are running "behind" a certain statistical procedure? This would be like in ...
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0answers
96 views

Orange: Group samples by a “splitting” feature for cross-validation?

I need to split my datasets based on my own feature column in order to hold together certain data rows (e.g. from one patient, or compound) for cross-validation (CV). In Orange 3.11, Test&Score ...
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0answers
22 views

Orange: Creating Returns series

I am trying to create a 'returns' series for an asset i.e. EURUSD If my series is named $S$, I need to define $R(t)=S(t)/S(t-1)$. Is there a clever way to create the lagged variable in the Feature ...
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0answers
48 views

Scripting inverse PCA or MNF in Orange (biolab)

I have a data table with many rows and columns that I have successfully taken through K-means and PCA workflows in Orange. Now I'm trying to calculate the "minimum noise fraction" of the data. This is ...
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0answers
74 views

Orange Biolab custom widget learner input

I was able to install the demo widget in Orange 3.9.1 and made it work with these learners Naive bayes Logistic regression In other words I was able to connect the nodes to the newly installed "...
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0answers
98 views

Orange machine learning Text mining twitter feature

I am using the twitter feature in Orange. However, when I save the corpus in a file, it eliminates the detailed URL information (unwrapped / expanded URL ). It only provides the shorten version of the ...
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0answers
117 views

How to tune the hyper-parameters of an estimator in Orange Tool

Hi I want to tune/search hyper-parameters of SVM in Orange tool. How can I do? I want to apply Exhaustive Grid Search to SVM http://scikit-learn.org/stable/modules/grid_search.html
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0answers
181 views

P-values in Orange

I'm new to orange and struggling to find p-values, using different regression tools. It seems the outputs are only coefficients. What am I missing?
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0answers
51 views

Orange canvas will not properly parse/open a file with a long header (column) line

I have a tab delimited data set with 23 columns. The header for this file names the 23 different features in the dataset. The column names are... file yval size err a-value b-value c-value ...
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0answers
85 views

SPSS style custom tables in Orange

Is there a way to draw custom tables like in SPSS where you put some attributes to rows and some to column to visualize clustering results?
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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.
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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 ...
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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? ...