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Questions tagged [data-visualization]

Plotting data graphically, static or interactive.

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3 votes
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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
60 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
290 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
573 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
69 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
148 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
3 votes
0 answers
168 views

Plot a 2D vector field with radial symmetry in Python

I computed a 2D vector field 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 solved using ...
Max's user avatar
  • 151
5 votes
1 answer
489 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
  • 151
5 votes
0 answers
115 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
227 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 ...
Björn Lindqvist's user avatar
1 vote
0 answers
181 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
  • 301
7 votes
3 answers
473 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
69 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
46 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
  • 3,830
3 votes
1 answer
106 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
  • 3,830
2 votes
1 answer
52 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
  • 3,830
3 votes
1 answer
180 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
  • 1,016
0 votes
1 answer
63 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
221 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
264 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
266 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
57 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
  • 3,830
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
  • 239
6 votes
2 answers
437 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
75 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
4k 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
55 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
7 votes
1 answer
172 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
709 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
3 votes
0 answers
43 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
219 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
87 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
131 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
748 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
322 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
65 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
148 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
102 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
119 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
200 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
1 vote
0 answers
34 views

Google ChartWrapper bar formatted table

The end result is a bar formatted table chart that has expanding and minimising rows. The code below works fine but I'd like to know if there is a cleaner way to achieve the same result (see JSFiddle ...
Lex's user avatar
  • 11
3 votes
1 answer
68 views

Bar graph of Easter date distribution

Computing Easter for a given year is a classic computational problem. It is also one of the few cases when code seems to just have to live with magic numbers. Alternative to magic numbers: Decoding ...
chux - Reinstate Monica's user avatar
1 vote
0 answers
27 views

Salary-structure report using a web-presentation

I had to create a report which presents the salary structure of a firm. The data needed was provided by the client as CSV-files. I used PHP for the reading and preprocessing of the data. The actual ...
michael.zech's user avatar
  • 3,990
2 votes
0 answers
234 views

Angular polling and plotting component using Firebase

I could use some help refactoring my component and service. I have a lot of nested logic and wasn't sure what I could do to improve this. I'm new to Angular 7 and their piping syntax. I suspect this ...
Jon Smooth's user avatar
4 votes
1 answer
89 views

Sample size, P-values (its relationship), and data visualization with plots. ggplot and T test

We know that P-values (within t-test context as an example..) is highly sensitive to sample size. A larger sample will yield a smaller p-value remaining everything else constant. On the other hand, ...
Luis's user avatar
  • 165
1 vote
1 answer
354 views

Word count graph

I created a program in python that reads a file and outputs a frequency graph of the words it contains. Any feedback or tips would be appreciated. ...
Joyal Mathew's user avatar