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def isFloat(value):
    return not re.match("^[+-]?\d+?\.\d+?$", value) is None

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def getAverage(values):
    return sum(values) / float(len(values))

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#source

export JAVA_HOME=/opt/jdk1.8.0_144
export SPARK_HOME=/opt/spark-2.2.0-bin-hadoop2.7
export SPARK_DIR=/opt/spark-2.2.0-bin-hadoop2.7
export PYSPARK_PYTHON=python3
export PYSPARK_DRIVER_PYTHON=ipython3
export PYSPARK_DRIVER_PYTHON_OPTS="notebook"
export PATH=$PATH:$SPARK_HOME/bin
pyspark

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Setup R at Jupyter Notebook

Reference:

https://developers.refinitiv.com/article/setup-jupyter-notebook-r https://docs.anaconda.com/anaconda/navigator/tutorials/r-lang/

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1. Wolfram Language
2. Python
3. SQL
4. Java
5. HTML
6. CSS
7. JavaScript (NodeJS)
8. Bash
9. C
10. PHP

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[Desktop Entry]
Type=Application
Terminal=true
Exec=/opt/idea-IC-203.7717.56/bin/idea.sh
Name=IntelliJ
Icon=/opt/idea-IC-203.7717.56/bin/idea.png

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Ubuntu Linux setup for developers

Install

• Wolfram Mathematica
• Visual Studio Code
• Brackets
• git
• curl
• JDK (Java)
• Eclipse
• MySQL

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sudo mount -o loop Win10_20H2_v2_BrazilianPortuguese_x64.iso /mnt/w10

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sudo mysqldump --user root  --all-databases > all-databases.sql

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#!/bin/bash
# Get the dictionary data file... run it just once... 
# put those 3 files at ~/bin directory and give execution permission
cd ~/bin
wget https://www.mit.edu/~ecprice/wordlist.10000 -o wordlist.10000.txt