Questions tagged [data-visualization]
Plotting data graphically, static or interactive.
152
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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 ...
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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 ...
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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 ...
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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 ...
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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....
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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 ...
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168
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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
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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 ...
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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 ...
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3
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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 ...
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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).
...
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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 ...
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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. ...
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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 ...
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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 ...
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1
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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 =...
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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, ...
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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:
<...
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1
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221
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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 ...
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0
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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 ...
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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 ...
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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 ...
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Converting location names into country names in pandas dataframe
I have a dataframe df such that:
print(df['user_location'].value_counts())
...
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2
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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 ...
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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 ...
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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 ...
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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.
...
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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 - ...
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172
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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 ...
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0
answers
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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.
...
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709
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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 ...
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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 ...
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219
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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 ...
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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 ...
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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:
...
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1
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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 ...
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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:
...
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2
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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 ...
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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 ...
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148
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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 ...
3
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1
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102
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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.
...
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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'...
user201579
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1
answer
200
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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 ...
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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 ...
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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 ...
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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 ...
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234
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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 ...
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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, ...
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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.
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