Questions tagged [data-visualization]

Plotting data graphically, static or interactive.

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5
votes
2answers
128 views

Tracking Containers in a Train Station

This is a time line for control over the events of some containers in a train station. It gets all the data to build the time line by getting a JSON from a database via REST service. The app resets ...
14
votes
1answer
828 views

Plotting polynomials roots

NOTE: See follow up to this question here I created a simple python script to plot quadratic, cubic and quartic polynomials with integer coefficients between -4 and 4. It uses numpy to find the roots ...
11
votes
1answer
95 views

Python genetic sequence visualizer

I'm a beginner at python, and this is my first major project. Inspired by this reddit post, I wrote a program that accepts a DNA sequence (in a FASTA file format) and generates a graphical ...
10
votes
2answers
347 views

Plotting polynomial roots with density

Follow up on Plotting polynomial roots I rewrote the program to C++ and am now using GNU GSL scientific library and gnuplot and also used OpenMP for multithreading. The result is that it takes about ...
12
votes
2answers
881 views

Speech Recognition Part 1: Generate Training Data

You've all heard of neural nets, no? One of the "hello world"s of neural nets is OCR with the MNIST dataset. My idea for speech recognition is to train the neural net with short labeled spectrograms ...
6
votes
2answers
120 views

Genetic Sequence Visualizer - Generating large images

Inspired by this reddit post, I have written a program that accepts a DNA sequence (in a FASTA file format) and generates a graphical representation. HIV virus and Ebola virus My program works like ...
5
votes
1answer
3k views

Print the frequency of characters as a horizontal histogram

Well, I've used some of the feedback from my last posting to improve how I wrote this program. Mainly using the void parameter in main, initializing my int array to zero without using a for-loop, and ...
3
votes
2answers
124 views

K&R Exercise 1-13. Printing histogram of word lengths (horizontal variant)

I'm going through the K&R book (2nd edition, ANSI C ver.) and want to get the most from it. How does the following solution look to you? Note that, for the sake of exercise, I don't want to use ...