ryanbehdad

Podcasts

Name	Link	Feed
Artificial Intelligence	https://lexfridman.com/ai/	https://lexfridman.com/category/ai/feed/
DataFramed	https://www.datacamp.com/community/podcast	https://feeds.buzzsprout.com/147669.rss
This Week in Machine Learning & Artificial Intelligence (AI) Podcast	https://twimlai.com	http://twimlai.libsyn.com/rss

Blogs

ryanbehdad

import functools
import time

def readable_time(t):
    a = ''
    if t < 1:
        a = f'{t:.2f} sec'
    elif t < 60:
        a = f'{t:.0f} sec'
    elif t < 3600:

ryanbehdad

Using Visual Studio Code for Programming in R

Extensions

The extensions to install:

• R (https://marketplace.visualstudio.com/items?itemName=Ikuyadeu.r)
• R LSP Client (https://marketplace.visualstudio.com/items?itemName=REditorSupport.r-lsp)
• R Tools (https://marketplace.visualstudio.com/items?itemName=Mikhail-Arkhipov.r)

R Language Server

For R LSP, you need to have R language server installed.

ryanbehdad

Useful VS Code Keyboard Shortcuts

• Ctrl + R Switching workspaces
• Ctrl + P Go to file
• Ctrl+B Toggle Sidebar Visibility
• F4 Focus Next Search Result
• Shift+F4 Focus Previous Search Result
• Ctrl+` Toggle Integrated Terminal
• Ctrl+Space Auto-complete
• Crtl + Alt + up (or down): repeat cursor
• ALT + CLICK — Repeat cursor

ryanbehdad

Python venv virtual environment cheat sheet

Create a venv

To create a virtual environment, go to the root of your project and run

python -m venv venv

It will create a virtual environment called venv

Activate venv

.\venv\Scripts\activate

ryanbehdad

Python venv virtual environment cheat sheet

Create a venv

To create a virtual environment, go to the root of your project and run

python -m venv venv

It will create a virtual environment called venv

Activate venv

.\venv\Scripts\activate

ryanbehdad

Running RStudio in docker

Run docker

To start the docker container, run the following command:

docker run -d -p 8787:8787 -v C:\source:/home/rstudio -e ROOT=TRUE -e PASSWORD=rstudio rocker/rstudio

In the above command, I'm mounting "C:\source" to "/home/rstudio", thus providing the container access to all the contents of "C:\source".

If you want to mount multiple paths use -v multiple time. Example:

ryanbehdad

bash commands

mkdir

Make directory mkdir folder_name

Can create multiple directories in one command

mkdir Jan Feb Mar

ryanbehdad

Conda cheat sheet

Setup a conda environment

  conda create --name ds python=3.11 numpy pandas scikit-learn matplotlib seaborn jupyter plotly ipykernel pyodbc

Activate the environment

activate ds

ryanbehdad

# =======================================================================
# Print a summary of a pandas dataframe and its columns
# =======================================================================
def df_summary(df):
    print(f'Dataframe has {df.shape[0]:,} rows and {df.shape[1]:,} columns')
    if len(df) > 1:
        summary = pd.DataFrame(df.dtypes, columns=['dtype']).reset_index()
        summary.rename(columns={'index': 'feature'}, inplace=True)
        summary['missing'] = df.isnull().sum().values
        summary['uniques'] = df.nunique().values