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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1answer
239 views

rectangular markers in bubble plot (Python)

I would like to make a 'bubble' plot, but with rectangular markers. Is it possible to do this in Python? On x-axis should be the day of the week (Mon, Tue, Wed,...), on y-axis - counts, how many ...
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1answer
276 views

How to plot categorical data and encode it through colour and shape size?

Given the following data set: I am wondering what kind of plotting technique can be used to produce such a visualization: The Skill attribute is mapped to the ...
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4answers
4k views

Interactive plots in Jupyter

I'm looking for Jupyter extension to plot interactive graphs. For example I need to plot twenty time series lines with order to examine data. Only plugin which I've found is bqplot https://github.com/...
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2answers
232 views

Boxplots or violinplots?

This is quite a general question, perhaps somewhat opinion-based. In most papers people use boxplots to visualize a certain distribution, yet violinplots are able to give more information. ...
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1answer
194 views

Find intersection of data between rows and columns

Below is an Excel sheet with crops and countries. "1" means that the crop is grown in that country whiles "0" means it is not grown in that country. I want to find where there is an intersection (as ...
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1answer
639 views

Visualizing item similarities [closed]

I have an implicit dataset. It contains which user click which item. I'm doing collaborative filtering and finally i get the item similarites. So now i have data like; ...
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1answer
53 views

Differentiating between normal and attack clusters

In the below figure, we plotted some data of sensors in normal condition and under attack(outlier): 1. Green points are normal samples in the training dataset. 2. Cyan and red points are normal ...
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5answers
288 views

How would you visualize data that comes in the millions of records?

Developing a application where sometimes when I make a query I get millions or 100 of thousands of records in the results. My problem is , when I get these huge result sets, how do I visualize (in ...
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1answer
43 views

Representing different sets of data

I am out of ideas in regards to plotting different sets of data .... I have 10 sets of data ... Each set contains Actual Speed of vehicle and predicted Speed of Vehicle.. How can i combine all ...
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1answer
115 views

How would be plotted the logistic functions associated to a multiclass logistic classifier in a X-Y plot?

Logistic function is well known to be a good binary classificator, as it can be easily shown with this image (let x be the dot product of [x1,x2] and [w1, w2]): enter image description here I am ...
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1answer
1k views

Simple way to visualise word2vec vector space

I want to visualize my word2vec vector space (with zoom in and zoom out). I found a really interesting GitHub project named word2vec explorer. However, it does not seem to work in windows and mac. ...
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4answers
340 views

How to detect anomalous points

As is clear from the figure, the blue points, which don't follow the trend, are anomalous points. I'm wondering about the best non-parametric method to detect those points. I have tested some ...
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1answer
31 views

When visualizing data that has <1 or <5 ppm how do you display this?

I have some data (parts per million) where some of it is 1 or greater than one (but has an actual number.) However, some of the data simply lists "<1" ppm. What is a good way to visualize this in ...
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1answer
2k 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 ...
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3answers
405 views

Visualizing community composition using network of pie charts

Given a social network, I want to perform community detection and compare the result to known node metadata, such as gender, age, etc. to see if certain communities are largely composed of "similar" ...
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2answers
54 views

Two quantities visualization

I have a problem figuring out how to visualize two simple quantities using R. I want to compare their size by visualizing two proportional spatial figures next to each other and the size proportional ...
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1answer
184 views

Representing a large number of Data Classes with Color

ColorBrewer seems to be very useful in selecting a color pallet to represent factors that have up to 12 possible values. I have 28. Is it a horrible idea to represent 28 variables with color? If so,...
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0answers
42 views

Link between Correspondance Analysis and MCA

I've been dealing with a dataset full of categorical variables and had some issues to apply dimensionality reduction techniques as PCA is no great fit for such datasets. After some research, I came ...
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1answer
196 views

How to better represent three sets of categorical data?

Given three set of data with categorical integer x-axis with the same range (0-10): ...
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1answer
78 views

What are some good papers that discuss Tufte's 'data density index' and 'data-to-ink ratio' in data visualisation?

I've found a number of resources that mention Tufte's 'data density index' and 'data-to-ink ratio' when considering the analysis of particular visualisations and visualisation techniques, but I am yet ...
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2answers
1k views

Fast, efficient way to zoom/pan scatterplot with mouseover data [closed]

Given a csv of the form: x, y, annotation How can we efficiently (least code) generate an interactive (zoom/pan) scatterplot where the annotation appears when ...
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0answers
340 views

Histogram alternatives for two sets of data combined

It's my first question here and I hope it's not too simple for a data science question. I'm looking for a clear and less typical way to visualize my data. I have two data sets here - first one ...
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1answer
454 views

Coloring labels using scatterplot3d in R

I am trying to visualize data using R and scatterplot3d. I have loaded data and used: ...
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1answer
29 views

Charts with or without grids?

I am writing a thesis and don't know if the charts below should have grid lines or not. Do they need the grid lines? An example without the grid lines:
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1answer
339 views

A clear visualization of a two-way ANOVA

To provide a full yet simple picture of a 3-level, one-way ANOVA, I use the following visualization where variation within each group (the filled circles) and variation between the groups (black ...
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0answers
63 views

Plotting estimates of Tail Dependence Coefficient in R

I want to plot the following estimate of the tail dependence coefficient: $\hat{\lambda}_n=\frac{1}{k}\sum_{j=1}^nI_{\{X_j>X_{(n-k)},Y_j>X_{(n-k)}\}}$ where $I_{(.)}$ is an indicator function ...
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0answers
23 views

Visualising 2-step sequence data to spot the differences among two different user groups

I have the following data frame for a certain user group. Basically, it shows the current page, and the previous page visited across all users. For example, 81 users come from BLQ2_2 to visit BLQ2_1. ...
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3answers
61 views

Improve line plot visualisation

I want to improve the graphic that I created with R's ggplot2. The graphic is for a scientific publication. These are the runtime of 12 algorithms. There are four at the top, four in the middle and ...
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1answer
376 views

Using python to identify common paths that users follow among different activities

I have a click-stream data of users regarding their behaviour in a platform. There are activities provided in a temporal order and users can go back and forth between these activities. Below is an ...
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1answer
61 views

Calculation and visualization of islands of influence

I recently saw the graph of correlated technologies from the SO Developer Survey, which was pretty; reproduced below: I have a weighted graph that represents the amount of communication between pairs ...
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2answers
663 views

What are the differences between multivariate data visualizations and multidimensional visualizations?

I believe this should be the correct place for this topic since it didn't seem to fit naturally in the math stackexchange. I am writing an essay about data visualization, but I am having trouble ...
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2answers
1k views

Data Visualization Tool recomendations [closed]

I need a tool that lets me create a solution that fullfills the following requirements: Needs to be interactive and user friendly: Possibility to apply filters, change dimensions, etc.. Needs to be ...
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2answers
57 views

Feature selection on n different values

I have a .csv file with data in the following form: ...
2
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1answer
414 views

Heat map and visualization

I want to create a heat map to visualize some production data, but without geolocation. I am finishing some experiments in a greenhouse, divided in different sectors. The idea is to make a heat map to ...
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1answer
179 views

How to visualise very large graphs with 250M nodes and 500M+ edges? [closed]

I have graph data which has 250 million nodes and over 500 million edges. My files are roughly 230GB is size, this includes the node and edge files. I am having major difficulties visualising the ...
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1answer
282 views

XGBClassifier and RandomForestClassifier variable importance plots are very different

I have one dataset, and decided to use XGBClassifier to get a variable importance plot from it. I was a little surprised that some features that I assumed were insightful had no appreciable value. ...
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1answer
478 views

Is this a bug in Seaborn?

I am using the seaborn violin plot feature however the size of the violins aren't what I would expect them to be. Does anyone know whether this is something I am doing wrong, or as I suspect whether ...
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1answer
223 views

How do I calculate a similarity matrix with a Student-t kernel?

As the title says, how do I calculate a similarity matrix with an un-normalized Student-t kernel? I'm attempting to calculate Kullback-Leibler divergence for different t-SNE runs, but need a Q-matrix ...
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0answers
42 views

Infoviz for multinomials: miniature plots within plots in R's ggplot

I'm plotting fluctuations in a trinomial distribution across two dimensions. ...
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1answer
57 views

How much data warrants building a pipeline?

If I'm doing simple aggregation dashboards, what's the minimum amount of data which justifies building a full blown data processing pipeline? Is it reasonable to build a complicated pipeline with ...
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1answer
572 views

Why we use transposed filter as the deconvolution operation instead of the pseudo inverse of filter?

I am trying to visualization CNN by the method in this paper "Visualizing and Understanding Convolutional Networks" According to this tutorial A guide to convolution arithmetic for deep learning (P....
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1answer
642 views

Sorting bar chart in Tableau by one category of bars

I have a bar chart that looks like this (truncated for space, orange label obscured for privacy): Right now, it is ordered by US state. The color distinction is for something called "Entity". Here ...
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1answer
103 views

Explaining what a neural network is learning

In more traditional statistical learning methods, such as logistic regression, the coefficients on the pre-selected features can be interpreted as increasing or decreasing the log-odds of success. For ...
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0answers
1k views

Feature Importance and Partial Dependence plots seem to disagree?

I need some help understanding my partial dependence plots for binary features passed to a GradientBoostClassifier when comparing them to the feature importances. For some background, my goal here is ...
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1answer
2k views

Visualizing Customer journeys

Objective I want to visualize a typical customer's journey using Python or R. As usual, customers buy different products at different points of time. I checked every customers journey and chose ...
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1answer
908 views

How to visualize multi-instance multiclass classification?

Let's say I have 3 classes and 1 score for each data point score z class 1 class 2 class 3 E.g. the input looks like: ...
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2answers
1k views

How to more simply see overlapping data for dozens of variables?

I'm trying to think of the best way to see how multiple variables (about 40) related to a very large userbase can be seen to interact with one another. As an analogy, imagine I had survey data of ...
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0answers
2k views

analysing stability of a measurement over time

I have some sensor data (actually many different sensors about 90 of them) and I have their readings over some time course. I was wondering on a couple of things: 1: What metrics can I use to assess ...
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1answer
4k views

How to plot a contour map in python using matplotlib?

I am trying to plot a contour map with the following data I have in 3 columns one for the date and time (T) one for the temperature - T1 last one with the temperature - T2 I am intending to make a ...
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0answers
1k views

SeaBorn: Custom axes scaling & spines using PairPlot?

{ Figured this is the most germane place for this question, but definitely let me know if not! } Two Asks: How would I uniformly standardize the size and scale for each of the bivariate (i.e., ...