There are thousands of packages and hundreds of functional formulas in the field of data science, although you don't need to know all of this, but it's important to have a quick look at your study. Learning Big Data includes understanding of statistics, math, programming knowledge (especially R, Python, SQL), and understanding the business to drive decisions. These forms may give you some help.
Python's Quick check table
Python is very popular among beginners and is also enough to support the most popular products and applications, and it's designed to make you feel as natural as writing in English while programming, and Python basics or Python debugger's quick-look table covers important syntax,
Python 2.7 Quick Reference Sheet
Python Cheat Sheet by Davechild
Python Basics Reference Sheet
Python Debugger Cheatsheet
Numpy/scipy/pandas Cheat Sheet
Python Overapi Cheatsheet
Python Decorators Cheatsheet
Python 2.4 Quick Reference Card
Python 3 Cheat Sheet
Python Language & Syntax Cheat Sheet
Quick Check table for r
R's ecosystem has been expanding, and a lot of references are needed. R's fast-track table covers most of R's knowledge, and Rstudio also publishes some quick-look tables to make r easier to learn. When you want to show the results, it may be a good idea to use Ggplot2 to visualize the data.
R Cheat Sheet (Google drive)
R Functions for Regression analysis
R Reference Card
R Functions for TIME series analysis
R Reference Card for Data Mining
R Cheat Sheet
Data Analysis The Data.table
Interactive Web Apps cheatsheet by R Studio
Data visualisation with Ggplot2 Cheatsheet by R Studio
Package development with Devtools Cheatsheet by R Studio
Data wrangling Cheatsheet
R markdown Cheatsheet
R Markdown Reference Guide
R Data Management Cheatsheet
R Cheatsheet for graphical parameters
MySQL & SQL Quick Check table
For a data analyst, the SQL Foundation is very important. The pig and Hive query languages, like SQL, are common, structured languages. SQL Quick Check Table provides 5 minutes of fast reading, after which you can enter hive & mysql!
MySQL Cheatsheet by Dave Child
SQL Cheat Sheet
SQL in one page
MySQL Reference Guide
Visual SQL Joins
SQL for Dummies
Spark Quick Check Table
Apache Spark is an engine for large-scale data processing, and for some applications, such as machine learning, Spark is 100 times times faster than Hadoop MapReduce. Apache Spark's fast-track table explains the big data ecosystem and describes common behaviors and actions.
Https://dzone.com/refcardz/apache-spark
Scala Cheatsheets 1
Scala Cheatsheets 2
Scala from Dzone Reference Card
Spark Cheatsheet on GitHub
Scala on Spark cheatsheet
Essential Apache Spark Cheatsheet by MapR
Fast Track table for Hadoop & Hive
Hadoop is a traditional tool that provides open source software frameworks for processing large amounts of data in parallel.
Hadoop for Dummies Cheatsheet
Getting Started Apache Hadoop Reference Card
Hadoop Command Line Cheatsheet
Working with HDFS from the command line-hadoop Cheat sheet
Hive Function Cheatsheet
SQL to Hive Cheatsheet
Machine Learning Quick Check table
We often spend a lot of time thinking about which algorithm to use, which gives you the data and the problems you need to solve, and then suggests the algorithms you can try.
Choosing the Right Estimator machine learning Cheatsheet
Patterns for Predictive Learning Cheatsheet
Machine Learning Algorithm cheat sheet for Microsoft Azure
Machine learning Cheatsheet Github 1
Machine learning Cheatsheet Github 2
Machine learning which algorithm performs best?
Cheat Sheet machine learning Algorithms R commands
Patterns for Predictive Analytics
Django Quick Check Table
Django is a free and open source Web application framework, written in Python.
If you're just getting started with Django, you get a quick look at the concepts and go deeper through these fast-track tables.
Django Cheat Sheet V.1
Django Cheatsheet 1
Django Cheatsheet 2
Django Cheatsheet 3
Django Cheatsheet 4
Django Reference Cheatsheet
Django Quick Start Guide & cheatsheet
Flask Cheatsheet
50 Data Science and machine learning quick check table "Turn"