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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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Python equivalent of Wolfram Language ParametricPlot3D?

The Wolfram Language as a ParametricPlot3D that can be used to interactively examine parametric functions in 3D. Which Python package and function(s) best ...
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17 views

how I can run python script in Power BI Desktop Report Server (64-bit) [on hold]

I need to run python script in Power Bi to create Visualization and I know that this can done by enabling preview feature in options but I don't see preview feature in options list. I have updated ...
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10 views

Are there any tools out there to use for exploratory analysis on semi structured data sources (non-relational)?

I.e. server log files and other machine generated data. As far as I know most visualization tools (Power BI, Tableau, Excel) generally expect tabular data. Are there similar tools for exploratory ...
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0answers
8 views

Graph of two social “dimensions” [closed]

It is common to represent various (ordinal, social) attributes on a pair of axes as in the examples below. In general, what is this sort of graph/representation called? It is, perhaps, useful to ...
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same color scheme for 2 pie charts

I want to visualize statistics from two large dataframes with similar data in two pie charts. I would like for these two charts to use the same color when the same category appears in the chart. I ...
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2answers
42 views

Possible Challenges for a Data Science Escape Room

Dear Data Science Community, as my project for my bachelorthesis I am working on a concept for a physical Data Science Escape Room. The goal of the escape room is to create awareness for data science ...
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1answer
15 views

What's the best way to plot a bar graph with large numeric difference in values?

I'm graphing the value of the Ruble against the US Dollar in the 1990s. There was hyper-inflation from 1992-1997 (where the "y" values expanded from 125 to 6000). On Jan 1st 1998, the government ...
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How can I draw a bar graph from three different data frames using matplotlib? [migrated]

I want to draw a triple bar graph with three different dataframes using matplotLib DF1 index | Number A | 110 B | 22 D | 52 DF2 ...
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1answer
26 views

How to perform (modified) t-test for multiple variables and multiple models on Python (Machine Learning)

I have created and analyzed around 16 machine learning models using WEKA. Right now, I have a CSV file which shows the models' metrics (such as percent_correct, F-measure, recall, precision, etc.). I ...
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1answer
54 views

Any suitable way to describe the distributions of 2 Pandas Dataframes visually/graphically?

I am aware of the fact that the Pandas Dataframe's Statistical description can easily be obtained using df.describe(). I am having 2 dataframes of the same ...
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2answers
86 views

Data Visualization with multiple dimension, and linear separability

I have a dataset of two classes with several features, how can I visualise such data using Matlab to decide if it is linear separable or not?
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1answer
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Algorithm or JS graph drawing library that can generate a graph of 100,000+ nodes and edges while minimizing edge crossings

I'm trying to plot a directed graph of $2^{16}$ nodes and $2^{16}$ edges (but not simply a cycle). Ultimately, I need to be able to share an interactive graph (zooming, panning, labels). Mathematica ...
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1answer
57 views

How to visualize change in a distribution with a few outliers that account for a very large percent of the total?

I'm working on an edtech product where some of our traffic lands on webpages about textbooks. Textbooks belong to subjects like Algebra, Calculus and Spanish. In each of our subjects, we have "...
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1answer
56 views

Histogram is extremely skewed to the left

everyone. Hope you are all okay. I am pretty bad at visualizations in Python. I am working on a movie dataset and now I want to understand how values of variable 'vote_count' for every movie in the ...
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1answer
20 views

What are some ways to train, test and render an RL autonomous drone in a simulator?

I completed the Udacity nanodegree in Deep Learning but found the final project to be extremely difficult since the only visual feedback were from plots via matplotlib (rotor speeds, x/y/z coordinates,...
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1answer
33 views

Name of this type of cross variable interaction Plot

In recent papers of Social Network Analysis , I have been observing this particular type of graph used increasingly. I looked for what they are called to replicate the graph, but couldn't find the ...
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1answer
37 views

What kind of data visualization should I use?

I'm going to program a customized phone keyboard where some letters are larger than others, depending on how often I misstype them. For example, if I often pressed "w" instead of "e", I'd make the "e" ...
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1answer
14 views

Comparing rows in Data Studio

I'm using data studio for a project and I'm connecting to my big query table. My table contains following columns: Date, Store_name, Footfall I'd love to compare the footfall of two stores on data ...
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1answer
29 views

Which different visualizations to make for time series analysis?

I hope you're doing great. I have recently started working on a time series project and I have just finished preparing my data and calculating trends (daily, weekly, yearly) and I wonder what are the ...
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1answer
20 views

Alternatives to Heat Maps for Communicating Daily Data

I am currently using the heat map below to communicate the number of messages sent on a messing platform over time. I don't think this is the most effective way to communicate the information as it's ...
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1answer
34 views

Organizing complex analysis project

Does anyone have any experience organizing large data analysis projects? It seems that the majority of project organization tools for data science (DVC, datmo, mlflow, etc) assume a very model-centric ...
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1answer
26 views

Python code not displaying graph

I am using some python code from kaggle that plots a bar graph. However, when I run it, it does not display the graph. When I run it in the IDE I get the following output: ...
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0answers
14 views

Distributions Widget - How to show small number subgrouping instead of all subgrouping

Good day to all: Greetings, I am very new to using Orange Data Mining - a few days novice. I got a Excel data file, it is a list of maintenance repair work orders carried out for different class of ...
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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
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Tableau: Displaying Averages and Aggregate Calculations In Filtered Visualizations

I'm new to Tableau and I just started by making a graph with multiple filters. What I want to do is display some averages of some columns and other aggregate functions dynamically as the filters are ...
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1answer
38 views

PCA in visual Analytics

I m studying visual analytics and i have a theoretical question about this topic. My professor introduced this schema in him slide For connect data to visualisation. Some topic is very easy to ...
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0answers
11 views

Visulazing a specific value of a column with the corresponding values

I have recently started using data studio to make visualizations before diving into analysis and data prep! I have a column named NAME OF STORE that good different names and other columns like Date, ...
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1answer
15 views

Display a subset of classes in axes in ggplot

I have the following plot, is there any way in ggplot to display just the numbers 1 to 10 instead of all of them? Numbers from 10 and after are not so important, but I need to display the ones before. ...
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SVM Cost function change to improve its computational efficiency

While listening to Andrew Ng's course of Machine Learning he said that the SVM's cost function term $\frac{\Theta^T\Theta}{2}$ is usually changed to $\frac{\Theta^TM\Theta}{2}$, where matrix $M$ ...
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1answer
178 views

Is there a way to Label/Annotate My Bubble Plot (Scatter plot with a z-axis) on matplotlib?

I would like to label my bubble plot, with the labels being INSIDE the bubbles. Something like this. Is There any way to do that? What I've tried: ...
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2answers
68 views

Using t-SNE to track progress of a word vector embedding model. Pitfalls?

I've been training a word2vec/doc2vec model on a large amount of text. I recently stumbled across the t-SNE package, and am finding it wonderful at finding hidden structure in high-dimensional data. ...
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1answer
52 views

Finding a Data pattern [closed]

I am new to this data science field. I have data of points in 3D space and each point "helps" a metric. I have the sets of points and corresponding metrics. Data might look like: ...
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1answer
27 views

Comparative Analysis of two sets of data

I have 2 sets of data which consist of marks of 60 students in a particular subject in year 1 and year 2 respectively. Year 1 : 86, 76, 87, 67, 89, 95.... so on (60 students) Year 2 : 82, 67, 99, 77,...
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1answer
373 views

What is the difference between regplot and lmplot in seaborn?

Seaborn library in python suggests to use either lmplot or regplot to visualise a regression between two variables. What is the difference between the two plots ? The result I was able to get are ...
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11 views

Spatially encoding textual data

Imagine we have a textual data that must be passed to convolutional neural network. Generally we know that for natural language processing, textual data is embedded into vector space, but in this ...
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2answers
43 views

Trying to find the correlation between inputs and output

I have tried the pandas code for trying to find out the correlation between the output and the inputs I am feeding. Here is the code: ...
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1answer
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How the original data can be written in the space defined by these M principal components?

Suppose you apply PCA on the data $x_1,...,x_6$ and find that data can be fully described using M principal components $u_1,...,u_M$. How the original data can be written in the space defined by these ...
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1answer
152 views

What is the concept of error bars in barplots in seaborn library?

I am using seaborn library to perform EDA on a dataset having categorical variables. I am using barplot function and in that there are some black bars which I guess are error bars as I read in ...
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1answer
47 views

Tools for visualisation: making a video of a sliding windows moving on the time series

I have a Neural Network (an autoencoder) that gets as the input a time-window of length M from a time series of length N, (...
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1answer
31 views

Do 3D bar charts have advantages over 2D bar charts?

I vaguely remember that there was a study / blog post which made a strong point against 3D bar charts. Do you have a source at hand which compares the two - 2D bar charts and 3D bar charts?
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1answer
477 views

Matplotlib — TypeError: 'module' object is not callable

I am new into ML. As per video tutorials when i try to execute the following lines i get an error. However the instructor get successful execution. Error is : i have google about it but didnt get ...
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0answers
15 views

What has to be considered when creating a radar chart?

I'm currently analyzing a WhatsApp chat history. One thing I'm interested in is the time when the two people communicated. I thought this is a perfect use case for a radar chart (aka spider chart, ...
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1answer
95 views

Excel Data to Venn Diagram

I don't really know if I'm posting in the right place but I hope so. I'm writing my bachelor degree, and I collected some data about fonts and language support. At the moment, all my data is stored ...
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1answer
25 views

Want suggestions on choosing open source embedded BI tool [closed]

I need some suggestions from all group members regarding the open source reporting/dash-boarding tool which fulfills below specific requirements apart from some basic BI functionalities: 1. Can be ...
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1answer
96 views

Customer Targeting for CRM Marketing Campaign [closed]

I need help or ideas to solve the below business challenge. Sample questions has been provided. A snapshot of the sample data has been attached below:
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1answer
12 views

How understand scatter like this way? [closed]

I am trying to learn some EDA skills and I get a scatter like this way: I don't see that there are some model relationships or group-related patterns between these two data. I mean what I thought was ...
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2answers
43 views

Building predictive model with low correlated data [closed]

I have been working on a project with low features and only few entry fields ( 4 to be exact ). All the data in the dataset is barely correlated to each other. Is there some organized way or ...
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1answer
28 views

Is Loss not a good indication of performance?

Im trying to segment 3D volumes using a 3D uNet network. Ive reached a stage where I am getting very good validation loss using CrossEntropy and ...
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1answer
47 views

How to make a Power Spectral Density Plot in R

I have a time series point process representing neuron spikes. I have computed and plotted autocovariance using acf but now I need to plot the Power Spectral ...