A single Python file with some tools for visualizing machine learning in the terminal.

Related tags

Machine Learningmlvt
Overview

Machine Learning Visualization Tools

A single Python file with some tools for visualizing machine learning in the terminal.

This demo is composed of three ideas, which are explained below. Here's how to get started:

git clone https://github.com/bwasti/mlvt.git
cd mlvt
python3 -m pip install -r requirements.txt
python3 test.py # demo above

or just copy the mlvt.py file!

mlvt.Reprint

Reprint helps with in-line animations. It works by keeping track of how much it printed so far and reprinting it when flush() is called.

You can use the with statement to hijack print statements and auto_flush=True to avoid calling flush() in a loop, like so:

print("loading!")
with mlvt.Reprint(auto_flush=True) as rp:
  for i in range(100):
    print(f"{i+1}%") # Reprint detects the loop and overwrites in-place
    time.sleep(0.02)
print("done!")

reprint.gif

or, if you'd prefer to avoid contexts, loop-detection and hijacked builtins

print("loading!")
rp = mlvt.Reprint()
for i in range(100):
  rp.print(f"{i+1}%")
  rp.flush()
  time.sleep(0.02)
print("done!")

mlvt.horiz_concat

horiz_concat concatenates multi-line strings horizontally, accounting for padding and ANSI escape sequences (for color text).

a = """
{ hello! }
          \_    
"""
b = """
 ___
|. .|
| ^ |
| o |
"""
print(mlvt.horiz_concat(a, b, padding=2))

yields


               ___
{ hello! }    |. .|
          \_  | ^ |
              | o |
              

plotille wrappers

Finally, there are a couple of small plotille wrappers that decouple updating charts and printing them. That library is great on its own, so I encourage you to check it out!

import mlvt
import numpy as np

# all charts take in width, height, color
hist = mlvt.Histogram(32, 8, color="bright_blue")
hist.update(np.random.randn(100))
print(hist)

gives us

 (Counts)  ^
8.80000000 |
7.70000000 | ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
6.60000000 | ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
5.50000000 | ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⡇⣶⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
4.40000000 | ⠀⠀⠀⠀⠀⠀⠀⠀⢰⣶⣶⠀⠀⢸⡇⣿⠀⢰⣶⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
3.30000000 | ⠀⠀⠀⠀⠀⠀⠀⣿⢸⣿⣿⣿⣿⢸⣿⣿⣿⢸⣿⣿⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
2.20000000 | ⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⡇⢸⣿⠀⠀⠀⢸⡇⠀⠀
1.10000000 | ⠀⠀⢀⣀⡀⣿⣀⣿⣿⣿⣿⣿⣿⣸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠀⠀⣇⣸⡇⠀⠀
         0 | ⠀⠀⢸⣿⡇⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠀⠀⣿⣿⡇⠀⠀
-----------|-|---------|---------|---------|-> (X)
           | -2.124059 -0.741902 0.6402548 2.0224115
Owner
Bram Wasti
https://twitter.com/bwasti
Bram Wasti
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