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.)
32
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2
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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 ...
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178
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20
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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 ...
- 18.8k
27
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8
answers
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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 ...
- 443
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3
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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 ...
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1
answer
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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 ...
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1
answer
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Pandas grouped data to Bokeh graph
I'm having trouble graphing Pandas grouped data in Bokeh.
...
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8
answers
3k
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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 ...
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3
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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,...
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6
answers
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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 ...
aiolias
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2
answers
152k
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15
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2
answers
4k
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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 ...
- 293
15
votes
1
answer
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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 ...
- 1,490
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4
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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 ...
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1
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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 ...
10
votes
5
answers
7k
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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 ...
- 179
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votes
2
answers
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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:
...
- 4,207
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1
answer
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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 ...
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1
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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 ...
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3
answers
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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.
...
4
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2
answers
2k
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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, ...
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2
answers
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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....
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2
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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 ...
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1
answer
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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 ...
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5
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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 ...
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1
answer
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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). ...
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2
answers
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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 ...
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2
answers
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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
...
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vote
3
answers
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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,
...
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vote
2
answers
1k
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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 ...
- 113
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votes
2
answers
170
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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 ...
0
votes
1
answer
777
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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 ...
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2
answers
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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 ...
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