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Questions tagged [data-visualization]

Plotting data graphically, static or interactive.

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4 votes
2 answers
292 views

Optimizing Multiple Subplot Visualization and Navigation in Matplotlib

I have implemented a class in Python using Matplotlib for visualizing multiple subplots along with navigation buttons to move between different subsets of data. Each subplot displays a contour plot ...
Cold Fire's user avatar
9 votes
4 answers
1k views

Reverse Engineering Data Files (Binary Visualization)

Binary Visualization based on Christopher Domas talk: youtube link and this Russian programmer where I discovered this talk: youtube link. Algorithm: Scan the pairs of bytes of a file with a sliding ...
Harith's user avatar
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5 votes
1 answer
120 views

Trie Implementation, Graph Visualization and Auto-Completion in C

Given a list of strings (say a text file containing some C symbols: c-symbols.txt), the program can: Generate a graph of the underlying trie (-p/--prefix can be specified to inspect a specific prefix ...
Harith's user avatar
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3 votes
0 answers
135 views

Image generator using prime numbers in polar coordinates

Related This is a Python script that generates images using prime numbers up to a given positive integer, it generates prime numbers using the Sieve of Eratosthenes with some rudimentary Wheel ...
Ξένη Γήινος's user avatar
2 votes
0 answers
77 views

Python script that generates images using Thue-Morse sequence

In mathematics, the Thue–Morse sequence, or Prouhet–Thue–Morse sequence, is the binary sequence (an infinite sequence of 0s and 1s) obtained by starting with 0 and successively appending the Boolean ...
Ξένη Γήινος's user avatar
3 votes
0 answers
42 views

Plot of massless particles on the unstable null circular geodesic

My friend and I were trying to reproduce Figure 4(left), page 7, from the paper "Probing phase structure of black holes with Lyapunov exponents", Guo 2022. We succeeded in reproducing the ...
codebpr's user avatar
  • 131
1 vote
1 answer
93 views

Create charts after querying database

I'm at the end of the IBM Data Analyst course, and I wanted to ask for a rating of a piece of code I wrote as a solution to its exercises from the final chapter. I know I could write it on the forum ...
kkkkrkrkkk's user avatar
1 vote
0 answers
694 views

Python fractal tree generators

I wrote the scripts several days ago, they do exactly what I intended, but the performance is not very good, I am still stuck on for loops and don't know how to vectorize things, I wrote both scripts ...
Ξένη Γήινος's user avatar
3 votes
1 answer
1k views

Colored bar plots with confidence intervals

I needed to create a bar plot that show: the mean from some series; them 95% confidence interval; and, bars might be colored blue if they are definitely above this value (given the confidence ...
GregOliveira's user avatar
1 vote
1 answer
87 views

Show different concentrations on scatter plots with different colors [closed]

I have an app which parses data files on the clients browsers and displays a scatter chart. This is an example of a scatter chart with 10,000 data points: This is an example of a scatter chart with 1....
Mark's user avatar
  • 221
1 vote
0 answers
280 views

A collection of Python functions that fill a given region with rectangles

These are what I was working on in the last few days, I wrote a bunch of functions that fill a given region with rectangles of different colors. The functions can: Randomly split a region into sub ...
Ξένη Γήινος's user avatar
5 votes
1 answer
325 views

Compute and plot a 2D vector field with radial symmetry in Python

I computed a 2D vector field \$\mathbf{U} = (u(x,y), v(x,y))\$ with radial symmetry, parametrized as \$(u,v) = a(r) (x,y) + b(r) (-y,x)\$, where \$a(r), b(r)\$ are given as solution of an IVP which I ...
Max's user avatar
  • 171
5 votes
1 answer
884 views

Formatting a table using unicode symbols in python

The goal of the project is to take in input for a data, perhaps in the future as a csv, then print it out using UNICODE box-drawing characters. The main function ...
Saphereye's user avatar
  • 233
5 votes
0 answers
173 views

A Python 3 script that generates art using matplotlib

I am always super interested in both science and art, science and art are two different ways to describe the objective reality, they are two sides of the same coin, in many areas they overlap, and ...
Ξένη Γήινος's user avatar
3 votes
1 answer
793 views

Call-flow graph from Python abstract syntax tree

Below is my code for building a call-flow graph from a Python abstract syntax tree. I'm not satisfied with it because the algorithm is very complicated. Perhaps much more complicated than it needs to ...
Gaslight Deceive Subvert's user avatar
1 vote
0 answers
251 views

Python Sorting Algorithm Visualizer with Pygame

So I've written a Sorting Algorithms Visualizer according to this tutorial, but made some changes and add some features of my own. The visualization is made with Pygame (Which I never used before). ...
RedYoel's user avatar
  • 311
7 votes
3 answers
540 views

Draw a 2d graph using slashes

Given a list of integers a 2D graph has to be plotted taking 1st, 3rd, 5th, ... numbers as upward slope and 2nd, 4th, ... numbers as downward slope. I have used a Python list to do it. Is there any ...
Maghil vannan's user avatar
3 votes
0 answers
84 views

Cryptomarket data visualization

For a hobby project I want to visualize the current crypto market in bubbles. The idea is to clone cryptobubbles.net. I've already made a prototype at the moment, but the frames are on the low side. ...
Tom van den Bogaart's user avatar
1 vote
1 answer
52 views

Batch generating histograms of images in Matlab

I am attempting to plot histograms for batch of images in Matlab. The file structure of input images and the experimental implementation are listed as below. File structure of input images The matlab ...
JimmyHu's user avatar
  • 4,748
3 votes
1 answer
124 views

Three-dimensional DCT spatial frequency components illustration

I am attempting to make three-dimensional discrete cosine transformation spatial frequency components illustration. The 3D cubes is used to present the level of each coefficient. The more bright the ...
JimmyHu's user avatar
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2 votes
1 answer
55 views

Creating table for placing images in LaTeX

I am attempting to create a table for placing images in LaTeX. The first column is the (image) index, the second and third columns are images from different folder. For example, in the row with index =...
JimmyHu's user avatar
  • 4,748
3 votes
1 answer
298 views

Javascript Word Vectors Demo

This is my WIP attempt at an open-source web demo for exploring word vectors as part of my research. The functionality will be explained separately from the site. It is also my first time using HTML, ...
qwr's user avatar
  • 1,055
0 votes
1 answer
71 views

Comparing global sales of video game publishers

I am trying to create a function which can visualize(compare) two items of 'Platform', 'Genre' and 'Publisher' according to the 'Global_Sales' in different 'Year'. The DataFarame looks like: Code: <...
Govinda Regmi's user avatar
2 votes
1 answer
261 views

Simplify a complex KQL Query

The situation is, I have two fields in a database (or that can be derived) - when the message was received (Received, of type ...
simonalexander2005's user avatar
1 vote
0 answers
312 views

Vega lite plot rendering with Yew (rust + wasm)

I wanted to render some Vega plots in a rust+wasm web application I've been building with Yew. I'm a bit new to Rust, so I'm looking for feedback on runtime safety and stylistic issues. I was ...
villasv's user avatar
  • 111
6 votes
1 answer
305 views

Sinewaves and FFT plotter

I am trying to code a sin wave with 5 sliders: frequency, amplitude, phase change, number of data points, and time. I am currently trying to link my phase change slider with my graph so that it ...
CMTT's user avatar
  • 91
2 votes
0 answers
61 views

GNUPlot Code for Plotting Three Dimensional Data

I am trying to plot three dimensional (multiple plane) data onto figures with various perspective view. The input data is tab-separated values in multiple file, and each file represent each plane. The ...
JimmyHu's user avatar
  • 4,748
4 votes
1 answer
1k views

Converting location names into country names in pandas dataframe

I have a dataframe df such that: print(df['user_location'].value_counts()) ...
raf's user avatar
  • 249
6 votes
2 answers
578 views

Sorting algorithm visualizer in C++ and SDL2 Improved

Original post: Sorting algorithm visualizer in C++ and SDL2 I followed the advice you gave me and improved my code. I also added two more sorting algorithms. I'm mainly looking for code readability ...
Nadpher's user avatar
  • 889
19 votes
1 answer
2k views

Sorting algorithm visualizer in C++ and SDL2

I finished a sorting algorithm visualizer (for now only uses bubble sort) and this is the code. I'd like some suggestions to improve the memory usage or time elapsed. Built with Cmake and Ninja on ...
Nadpher's user avatar
  • 889
-2 votes
1 answer
76 views

This code demonstrates the central limit theorem. Is this code "Pythonic"?

I am new to Python, so I am interested in knowing if I am efficiently using python for this project. This program is meant to simulate the Central Limit Theorem. It uses sliders to adjust the number ...
Abstract Acumen's user avatar
5 votes
1 answer
5k views

Tkinter GUI for running HPLC pumps, real-time data visualization

What I made I used Tkinter to write a GUI to run some HPLC pumps for my work. The application sends some messages to the pumps via serial connections, reads a response, then logs data to a csv file. ...
teauxfu's user avatar
  • 83
4 votes
1 answer
58 views

Advice on path-finding visualisation program

Im looking for some help on improving my code which visualizes path-finding algorithms. The code is working however I know it can be improved. Any suggestions would be appreciated. Github code - ...
James Robinson's user avatar
7 votes
1 answer
1k views

This is a sorting algorithm visualization program

Configs.java ...
Trippix's user avatar
  • 73
6 votes
1 answer
179 views

Multithreaded HD Image Processing + Logistic reg. Classifier + Visualization

[I'm awaiting suggestions for improvement/optimization/more speed/general feedback ...] This code takes a label and a folder path of subfolders as input that have certain labels ex: trees, cats with ...
watch-this's user avatar
1 vote
0 answers
54 views

code plots - spatial data

I am an absolute newcomer in R. For my bachelor thesis I worked with spatial data. I did many plots with the normal "points"-function. I already have my results, but would like to improve my code. ...
user216204's user avatar
2 votes
1 answer
897 views

Forex Simulator in Python using pandas and matplotlib

Description: This would make a first part of a currency exchange simulator The first phase includes downloading currency historical data from histdata.com api, plotting given period and given time ...
watch-this's user avatar
9 votes
1 answer
136 views

Frequency analysis for simultaneous dice rolls

My professor told me to optimize my perl code, but he wouldn't tell me what exactly - just make it simpler. I changed some little things but nothing major. Am I missing something? The task was: ...
alec's user avatar
  • 131
3 votes
0 answers
51 views

Browser-editable SVG diagrams using JS & SVG.js

[This is my first question to Code Review and it might be a bit too much.] I want to give users the means to draw a simple diagram in the browser, and because it is partly a self-education project ...
Atcrank's user avatar
  • 131
5 votes
2 answers
257 views

Haskell Graphing Module (Gloss)

I've been slowly learning Haskell over the past few months. I made a small module to graph functions using Gloss, and I would like feedback on how idiomatic it is (looking for ways to simplify using ...
Alex F's user avatar
  • 443
5 votes
1 answer
88 views

Fetch, plot, and send security incident statistics with Excel

TLDR: I don't develop for a living. If someone could point me in the right direction to make my script more readable/pythonic I would appreciate the assistance. In particular I'm struggling with the ...
ImNotLeet's user avatar
  • 161
4 votes
2 answers
134 views

Query to plot a histogram of song ratings

I wrote code to plot a rating distribution, which looks like this: The most important function is the stats function: ...
K. P.'s user avatar
  • 243
12 votes
1 answer
4k views

Predator-prey simulation

I made a random-walk predator-prey simulation that focuses on individual animals instead of the (maybe) more common array-based approach. I'd like to hear your opinion about this: how could the ...
Neinstein's user avatar
  • 405
5 votes
1 answer
784 views

Draw a spark line with SwiftUI

I am using a set of data points (currently randomly generated), and drawing a line graph inside a box: ...
coco's user avatar
  • 161
6 votes
2 answers
413 views

Mandelbrot rendering code in R

I'm trying out a new continuous histogram coloring method for Mandelbrot rendering in R, and since it requires three loops (three passes), each of them doubly nested, there should be a way to ...
Yuriy S's user avatar
  • 205
3 votes
0 answers
67 views

Django project for events of the day, grouped by keywords in common

I have made a website where people write about their day and see it analyzed. In particular, the website takes event titles and groups them together if they have any common words (after stemming the ...
Bo Work's user avatar
  • 391
6 votes
1 answer
159 views

Graphing refugee movements using plotly in Python

I've created a simple data visualization in python that shows the movement of refugees around the world. The code works but I feel it is a bit slow. it takes about 10 s (on my hardware at least) to ...
Jeremy Herbert's user avatar
3 votes
1 answer
110 views

Wiki Link Mapper — A webcrawler which crawls links recursively and prints them into a graph

I would like some suggestions on how to make it better and also if any features that i should add to this Script. I am using beautifulsoup,requests for scraping and networkx for plotting the graph. ...
Hardik Mehta's user avatar
4 votes
1 answer
121 views

CV written in LaTeX

I've created a CV eager for corrections. Once it is properly written it'd be converted into a template, in order to share it with the community. Can you suggest some starting corrections or ideas? (I'...
user avatar
3 votes
1 answer
235 views

Plot ROC, PR, and PRI curves in C# using pre-calculated coordinates

I have written a small program in C# to plot ROC, PR (equal to AP) and ...
Aalawlx's user avatar
  • 193