ndamulelonemakh

service cloud.firestore{
  match /databases/{database}/documents{
    match /{document=**}{
      allow read, write: if request.auth.uid != null;
    }
  }
}

ndamulelonemakh

"""
 A simple python script that uses the psutil package to show processes running on a host machine.
"""

__version__ = '1.0.0'
__author__ = 'Ndamulelo N [email protected]'

import psutil
import argparse

ndamulelonemakh

#!bin/bash

# REFERENCE: https://docs.microsoft.com/en-us/sql/linux/quickstart-install-connect-ubuntu?view=sql-server-ver15

# 1. First add the Microsoft SQL Server repository 
wget -qO- https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
sudo add-apt-repository "$(wget -qO- https://packages.microsoft.com/config/ubuntu/18.04/mssql-server-2019.list)"

# 2. Then Install sql server using apt-install
sudo apt-get update

ndamulelonemakh

import smtplib
import ssl
from smtplib import SMTPAuthenticationError

# Simple Python snippet to automatically send emails using gmail
# Docs: https://docs.python.org/3.10/library/smtplib.html

DEFAULT_SSL_PORT = 465
GMAIL_SERVER_ADDRESS = "smtp.gmail.com"
DEFAULT_SENDER_EMAIL_ADDRESS = "<sender-address>"

ndamulelonemakh

import os
import uuid
import webbrowser
import urllib.parse as urllib

# You need to install these modules using pip
import flask
import requests

__author__ = '@NdamuleloNemakh'

ndamulelonemakh

public class SimpleSingleton{
  private int count = 1;

  // Use lazy<T> to delay initialisation until the field is accessed
  private static readonly Lazy<SimpleSingleton> _instance = new Lazy<SimpleSingleton>( ()=> new SimpleSingleton());

  private SimpleSingleton(){
    Console.WriteLine($"{nameof(SimpleSingleton)} constructor called at {DateTime.Now}");
  }

ndamulelonemakh

"""Example implementation of the conjugate gradient descent algorithm using a hard coded objective function

    F(X1, X2) = 5X1**2 + X2**2 + 4X1X2 - 14X1 - 6X2 + 20

- At each step the value of X will be updated using
    X_k+1 = X_k + alpha * Pk

    Where pk is the conjugate direction and alpha is the step length
"""
import math

ndamulelonemakh

'''
Simple method to dynamically create the google service account file in Azure App service

Steps
----------------------
i.   Add the service account file contents to Azure App Service configuration
ii.  The json contents will be available to your app at runtime as an environment variable, e.g. GOOGLE_CREDENTIALS
iii. When you app starts, save the contents of the environment variable to a file that you specified as your GOOGLE_APPLICATION_CREDENTIALS
'''
import os

ndamulelonemakh

# Method 1: Easiest and does not require any library
data(mtcars)

## 75% of the sample size
smp_size <- floor(0.75 * nrow(mtcars))

## set the seed to make your partition reproducible
set.seed(123)
train_ind <- sample(seq_len(nrow(mtcars)), size = smp_size)

ndamulelonemakh

#!/bin/bash
# Summary: Install R in Ubuntu and make it available in jupyter lab

# Install R on ubuntu (Tested on Ubuntu 18.04)
sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran40/'
sudo apt update -y
sudo apt-get install r-base r-base-core r-recommended


# Extra requirements for compiling packages locally