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Questions tagged [visualization]

Constructing meaningful and useful graphical representations of data. (If your question is only about how to get particular software to produce a specific effect, then it is likely not on topic here.)

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180 votes
21 answers
254k views

How do you visualize neural network architectures?

When writing a paper / making a presentation about a topic which is about neural networks, one usually visualizes the networks architecture. What are good / simple ways to visualize common ...
Martin Thoma's user avatar
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3 votes
2 answers
1k views

Interpreting vertical and horizontal parts of ROC curve

It's not clear to me how I can interpret vertical and horizontal parts of the ROC curve. What important information can I gain from this? This is a text from the book "Human-in-the-Loop Machine ...
Mykola Zotko's user avatar
28 votes
8 answers
27k views

Visualizing a graph with a million vertices

What is the best tool to use to visualize (draw the vertices and edges) a graph with 1000000 vertices? There are about 50000 edges in the graph. And I can compute the location of individual vertices ...
Cici's user avatar
  • 453
9 votes
3 answers
1k views

Interactive Graphing while logging data

I'm looking to graph and interactively explore live/continuously measured data. There are quite a few options out there, with plot.ly being the most user-friendly. Plot.ly has a fantastic and easy to ...
Clayton Pipkin's user avatar
6 votes
1 answer
3k views

Correlation between specific columns of a data set

I have a CSV file which has 150 columns belonging to 7 categories but I want a correlation between 2 categories. The categories are movies and music, 12 and 19 columns respectively. Is there a way ...
Maha Kamal's user avatar
6 votes
1 answer
2k views

Pandas grouped data to Bokeh graph

I'm having trouble graphing Pandas grouped data in Bokeh. ...
ForsakenPlague's user avatar
2 votes
3 answers
824 views

Visualize frequency of 5 Boolean variables together

I have a data set with 5 variables, a b c d e 1 0 0 1 0 0 1 0 1 1 0 1 1 0 0 0 0 0 1 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 0 1 0 0 1 1 0 1 0 1 1 0 0 1 1 0 I am only interested in the percentages of occurrence, ...
myradio's user avatar
  • 131
30 votes
8 answers
4k views

Purpose of visualizing high dimensional data?

There are many techniques for visualizing high dimension datasets, such as T-SNE, isomap, PCA, supervised PCA, etc. And we go through the motions of projecting the data down to a 2D or 3D space, so we ...
hlin117's user avatar
  • 685
22 votes
3 answers
31k views

How do I create a complex Radar Chart?

So, I want to create a Player Profile Radar Chart something like this: Not only the scale of each variable different, but also I want a reversed scale for some statistics like the 'dispossessed' stat,...
Kunal Dharamsi's user avatar
21 votes
6 answers
13k views

What do you use to generate a dashboard in R?

I need to generate periodic (daily, monthly) web analytics dashboard reports. They will be static and don't require interaction, so imagine a PDF file as the target output. The reports will mix tables ...
user avatar
20 votes
2 answers
160k views

How to include labels in sns heatmap

I got this matrix ...
Srihari's user avatar
  • 777
15 votes
2 answers
4k views

Visualizing deep neural network training

I'm trying to find an equivalent of Hinton Diagrams for multilayer networks to plot the weights during training. The trained network is somewhat similar to a Deep SRN, i.e. it has a high number of ...
runDOSrun's user avatar
  • 293
15 votes
1 answer
5k views

Can closer points be considered more similar in T-SNE visualization?

I understand from Hinton's paper that T-SNE does a good job in keeping local similarities and a decent job in preserving global structure (clusterization). However I'm not clear if points appearing ...
Javierfdr's user avatar
  • 1,490
13 votes
4 answers
20k views

Interpreting Decision Tree in context of feature importances

I'm trying to understand how to fully understand the decision process of a decision tree classification model built with sklearn. The 2 main aspect I'm looking at are a graphviz representation of the ...
Tim Lindsey's user avatar
10 votes
1 answer
2k views

t-SNE: Why equal data values are visually not close?

I have 200 data points that have the same values on all features. After t-SNE dimension reduction they doesn't look so equal anymore, just like this: Why aren't they on the same point in the ...
ScientiaEtVeritas's user avatar
10 votes
5 answers
7k views

Visualizing items frequently purchased together

I have a dataset in following structure inserted in a CSV file: Banana Water Rice Rice Water Bread Banana Juice Each row indicates a collection of items ...
João_testeSW's user avatar
9 votes
2 answers
16k views

Display Images (url) Inside Pandas Dataframe

I would like to display images (mostly jpg and png formats) directly from their url link inside a pandas dataframe. Imagine I already have the following dataframe: ...
TwinPenguins's user avatar
  • 4,279
7 votes
1 answer
2k views

Why it is recommended to use T SNE to reduce to 2-3 dims and not higher dim?

According to wiki it is recommenced to use T-SNE to map to 2-3 dimensional. I can understand this , if we want to visualizing the data. If we want to reduce the ...
Boom's user avatar
  • 307
7 votes
1 answer
3k views

What does it mean by “t-SNE retains the structure of the data”?

I was learning about t-SNE when I was told that t-SNE retains the structure of the data in the embeddings. What exactly does this mean ? How does the algorithm achieve this ? So far I have ...
Tanmay Bhatnagar's user avatar
6 votes
3 answers
4k views

Why is a correlation matrix symmetric?

I'm sorry for being so weak in math. (I'm a student) For eg. this is a correlation matrix. ...
LazyAwkwardVaish Ok's user avatar
4 votes
2 answers
2k views

How to visualize categorical data over time?

I'm visualizing results from lab tests. Most of these results are numerical and therefore easily communicated using line graphs, where the x-axis is time and the y-axis is determined by the range of ...
jd87's user avatar
  • 141
4 votes
2 answers
2k views

How to visualize time-intervals

I have a pandas table with a start and end time for each entry. They don't intersect, but range from seconds to days. I want to visualize them, ideally the x-Axis being the date on which they occus, ...
Astronguem's user avatar
4 votes
2 answers
2k views

What does the descision boundary of a relu look like?

A single non activated neuron is just a linear combination of its inputs. Thresholding this neuron's output as-is against 0 would create a hyperplane binary separator, whose parameters can be learned....
Gulzar's user avatar
  • 196
3 votes
2 answers
2k views

Do i need to handle missing values before EDA?

I am working on a data set and there is an interesting column with missing values, but I don't want to discard the rows (so as not to lose data from other columns) or do imputation (so as not to ...
José Augusto's user avatar
3 votes
1 answer
849 views

How to visualize data of a multidimensional dataset (TIMIT)

I've built a neural network for a speech recognition task using the timit dataset. I've extracted features using the perceptual linear prediction (PLP_ method. My features space has 39 dimensions (13 ...
giogix's user avatar
  • 163
3 votes
1 answer
10k views

Plotting multivariate linear regression

For practicing linear regression, I am generating some synthetic data samples as follows. First it generates 2000 samples with 3 features (represented by x_data). ...
lame_coder's user avatar
3 votes
5 answers
2k views

Are there any python based data visualization toolkits?

Data visualization is an important sub-field of data science and python programmers need to have available toolkits for them. Is there a Python API to Tableau? Are there any Python based data ...
2 votes
2 answers
146 views

How do you define the steps to explore the data? [closed]

I'm falling in love with data science and I'm spending a lot of time studying it. It seems that a common data science workflow is: Frame the problem Collect the data Clean the data Work on the data ...
Daniel's user avatar
  • 123
1 vote
2 answers
1k views

Can I force DecisionTreeClassifier to use integer conditions when the variable is integer?

I'm trying to visualize a decision tree in python for the purpose of explainability. I noticed that a condition like "NumGoals >= 1.23" could be quite vague for the user and I would much rather to see ...
Razzaghnoori's user avatar
0 votes
2 answers
173 views

Visualizing Time Series Data

I hope this question isn't out of place here. I have some time series data from a Zooz power plug that I'd like to visualize. Excel works fine to a point, with small sets of data, but it's not ...
Richard Thomas's user avatar
0 votes
1 answer
840 views

Orange: Is it possible to get the total number of rows for a given column from inside 'Feature Constructor'?

I'm using the Orange gui and have been asked to generate basic plots where values relative to a "mean" or "Percentile Rank" are colorized. I ...
virtualxtc's user avatar
-1 votes
2 answers
406 views

How to plot High Dimensional supervised K-means on a 2D plot chart

I'm Having a ML problem where my data set contains 80 features labelled into 3 groups (0, 1, -1). I want to plot the data on a 2D surface to see how "close" (similar) data with ...
Eran Moshe's user avatar