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## Best Data Science Courses & Certifications

Click on the above links to navigate to the top data science courses in theabove categoryBest Basic Online Data Science Courses — Rank | Course Name | Instructor | Price | Link 1 | Careers in Data Science A-Z by Udemy | Super Data Science | ~~$200~~ $20 |Learn More 2 | Data Science Specialization by Coursera | Johns Hopkins University | $49 |Learn More 3 | Data Science Essentials by Edx | Microsoft | $49 | Learn More 4 | Microsoft Professional Orientation: Data Science by Edx | Microsoft | $49| Learn More 5 | A Crash Course in Data Science by Coursera | Johns Hopkins University |$49 | Learn More 6 | Data Science Foundations: Fundamentals by Linkedin | Barton Poulson |$29.99 | Learn More 7 | Data Science: The Big Picture by Pluralsight | Matthew Renze | $29.99 |Learn More 8 | Data Scientist with Python by DataCamp | Filip Schouwenaars, Hugo Bowne-Anderson, and others | $25 | Learn More 9 | Data Science by Edx | Leo Porter, Alon Orlitsky, Yoav Freund, SanjoyDasgupta, and Ilkay Altintas | $1400 | Learn More 10 | Machine Learning A-Z™: Hands-On Python & R in Data Science | Super DataScience Team | ~~$200~~ $10 | Learn More Best R Programming Courses 1 | R Programming A-Z™: R for Data Science with Real Exercises by Udemy |Super Data Science Team | ~~$200~~ $20 | Learn More 2 | Introduction to R for Data Science by Edx | Microsoft | $99 | Learn More 3 | R Programming by Coursera | Johns Hopkins University | $49 | Learn More 4 | Data Science: R Basics by Edx | Rafael Irizarry | Free + $49 | Learn More 5 | Data Science and Machine Learning Bootcamp with R by Udemy | Jose Portilla| ~~$195~~ $10 | Learn More 6 | R Programming: Advanced Analytics in R for Data Science by Udemy | KirillEremenko | ~~$200~~ $20 | Learn More 7 | Applied Statistical Modeling for Data Analysis in R | Minerva Singh |~~$200~~ $20 | Learn More 8 | R by Linkedin | Barton Poulson | $25 | Learn More 9 | Programming with R for Data Science by Edx | Anders Stockmarr & JonathanSanito | Free + $99 | Learn More 10 | Data Science with R by Pluralsight | Matthew Renze | $29 | Learn More 11 | Statistics and R by Edx | Rafael Irizarry & Michael Love | Free + $99 |Learn More 12 | R Career Track by Datacamp | Jonathan Cornelissen, Filip Schouwenaars,and others | $25 | Learn More 13 | Statistics with R Specialization by Coursera | David Banks, Colin Rundel| $49 | Learn More Best Python Courses 1 | Python for Data Science and Machine Learning Bootcamp By Udemy | JosePortilla | ~~$195~~ $20 | Learn More 2 | Applied Data Science with Python Specialization by Coursera | Universityof Michigan | $49 | Learn More 3 | Introduction to Python for Data Science by Edx | Microsoft | $99 | LearnMore 4 | Data Processing Using Python by Coursera | Zhang Li | Free | Learn More 5 | Python for Data Science by Edx | Ilkay Altintas, Leo Porter | Free | LearnMore 6 | Programming with Python for Data Science by Edx | Authman Apatira &Jonathan Sanito | Free + $99 | Learn More 7 | Data Science, Deep Learning, & Machine Learning with Python by Udemy |Frank Kane | $160 | Learn More 8 | Deep Learning Prerequisites: Linear Regression in Python by Udemy | LazyProgrammer Inc. | $120 | Learn More 9 | Deep Learning Prerequisites by Udemy | Lazy Programmer Inc. | $120 | LearnMore 10 | Python for Data Science Essential Training by Datacamp | Lillian Pierson,P.E. | $25 | Learn More Best Tableau Courses 1 | Tableau 10 A-Z: Hands-On Tableau Training for Data Science | Super DataScience | ~~$200~~ $20 | Learn More 2 | Fundamentals of Visualization with Tableau | University of California |$49 | Learn More 3 | Tableau Expert: Top Visualization Techniques in Tableau 10 | Super DataScience | ~~$200~~ $20 | Learn More 4 | Integrating Tableau and R for Data Science by Linkedin | Ben Sullins | $25| Learn More 5 | Data Visualization and Communication with Tableau | Daniel Egger & JanaSchaich Borg | $49 | Learn More 6 | Visual Analytics with Tableau | Suk Brar | Free | Learn More 7 | Learn Data Mining – Clustering Segmentation Using R, Tableau by Udemy |ExcelR Solutions | $50 | Learn More 8 | Tableau Interview Q&A: Tableau for Data Science Careers | Kirill Eremenko| $140 | Learn More

## Best Basic Online Data Science Courses

Here are the Top 3 Courses handpicked by our expertsBelow is complete list of courses in DataScience in order of rankingOffered by: Super Data Science TeamInstructor: Kirill Eremenko & Hadelin de PontevesPrice: ~~$200~~ $10This self-paced video learning course gives you details on how to become a topdata scientist. It is one of the best data science courses online designed forstudent or professional who wants to start or transition to a career in DataScience. It also helps professional Data Scientists who want to improve theircareer.This Data Science course is divided into six different modules- Introductionto Data Science, Requirements, Becoming a Top Data Scientist, Job options,promoting yourself and Interview. The course contains 3.5 hours of videocontent and 8 supplemental resources. The course comes with a 30-day moneyback guarantee, and the instructors are active on the support forum.Course link: https://www.udemy.com/careers-in-data-science-a-ztm/Offered by: Johns Hopkins UniversityInstructors: Roger D. Peng, Brian Caffo, Jeff LeekPrice: $49This Specialization data science training course covers the concepts and toolswhich is need throughout the entire data science pipeline. This specializationconsists of 10 courses viz, 1) The Data Scientist’s Toolbox, 2) R Programming3) Getting and Cleaning Data 4) Exploratory Data Analysis 5) ReproducibleResearch 6) Statistical Inference 7) Regression Models 8) Practical MachineLearning 9) Developing Data Products 10) Data Science CapstoneIn the final Capstone Project, students need to apply the skills learned bybuilding a data product using real-world data. After the end, of course,students will have a portfolio to demonstrate their knowledge.Course Link: https://www.coursera.org/specializations/jhu-data-scienceOffered by: MicrosoftInstructor: Dr. Steve Elston, Cynthia Rudin, Graeme MalcolmPrice: Free + $49 for a certificateThis six weeks data science course requires 3-4 hours working effort on thepart of the learner. In this data science course, you learn important conceptsin data acquisition, exploration, and visualization. It is one of the bestdata science course online that covers real-world application-orientedexamples like how to build a cloud data science solution using Microsoft AzureMachine learning platform.This course covers topic like exploring the data science process, probabilityand statistics in data science, Data ingestion, cleansing, and transformation,visualization, introduction to machine learning, etc. The student can also geta verified certificate for this course by just spending $49 USD.Course link: https://www.edx.org/course/subject/data-scienceOffered by: MicrosoftInstructor: Graeme Malcolm & Liberty J. MunsonPrice: Free + $49 for verified CertificateThis six weeks introductory course helps the learner to become a datascientist. It is one of the best course for data science that introduces toworking with and exploring data using a variety of analytical, visualization,and statistical techniques.The course covers topic like how the Microsoft Data Science curriculum works,Basic data exploration and visualization techniques in Microsoft Excel,Foundational statistics to analyze data. Moreover, you can get verifiedcertificate for this course by paying $49 USD.Course link:https://learning.edx.org/course/course-v1:Microsoft+DAT101x+2T2017/homeOffered by: Johns Hopkins UniversityInstructors: Jeff Leek (Ph.D.), Brian Caffo (Ph.D.), and Roger D. Peng (Ph.D.)Price: $49This class is designed for anyone who wants to learn all about data science.The information given in this course is lucid and easy to understand forbeginners. The course covers topic like the role of data science in variouscontexts, the structure of data science project, key term and tools used bydata scientists, etc. At the end, of course, learner will be able to know howto use data science in the organizations.Course Link: https://www.coursera.org/learn/data-science-courseInstructor: Barton PoulsonPrice: $29.99This Data Science course offers a complete overview of modern data sciencepractices like exploring, modeling, obtaining and interpreting data. Theprimary aim of this course is to give learner to understand better datascience’s role in creating meaningful insights from the complex and large setsof data.This data science online course covers topic like demand for data science,ethical issues in data science, exploring data through graphs and statistics,R and SQL, Programming with Python, Data science in math and statistics, Datascience & machine learning, Communicating with data, etc.Course Link: https://www.linkedin.com/learning/data-science-foundations-fundamentals-5Instructor: Matthew RenzePrice: $29.99This is a short beginner course with a run time of 1 hour and 9 minutes. It isone of the best courses for data science that will provide information aboutthe tools, technologies, and trends driving the data science revolution. Inthis Data Science course, the learner will be able to get a high-levelunderstanding of what data science is.This course covers topics like Data Analytics, Internet of Things, Big Data,Machine Learning, Closing the Loop, etc.Course Link: https://www.pluralsight.com/courses/data-science-big-picturePrice: $25Instructors: Filip Schouwenaars, Hugo Bowne-Anderson, and othersThis data Science course package covers statistical and machine learningtechniques with Python. This course helps to easily understand complex data.This 67 hours package covers 20 Data science courses for different skill sets.Introduction to Python for Data Science, Intermediate Python for Data Science,Python Data Science Toolbox (Part 1& 2), Importing Data in Python (Part 1 &2),Cleaning Data in Python, pandas’ foundations, Manipulating Data Frames withpandas, Introduction to Databases in Python, etc.Course Link: https://www.datacamp.com/tracks/data-scientist-with-pythonOffered by: Curtin UniversityInstructor: Leo Porter, Alon Orlitsky, Yoav Freund, Sanjoy Dasgupta, and IlkayAltintas.Price: $1400This course encompasses two sides of data science learning: the mathematicaland the applied. The first Mathematical part covers probability, statistics,and machine learning. It also covers the use of specific toolkit and languageslike Python, Numpy, Matplotlib, pandas and the Jupyter notebook environment,Scipy /Apache Spark to explore real-world data.In the second part, a learner will able to learn how to collect, clean andanalyze big data using popular open source software to perform large-scaledata analysis and present findings in a convincing, visual way.The course is bundle of 5 courses viz, Python for Data Science, Statistics andProbability in Data Science using Python, Machine Learning Fundamentals, BigData Analytics Using SparkCourse link: https://www.edx.org/micromasters/uc-san-diegox-data-scienceOffered by: Super Data Science TeamInstructor: Kirill Eremenko, Hadelin de PontevesPrice: ~~$200~~ $10This course is for everyone who is interested in the field of Machinelearning. It is designed by two expert Data Scientists in such a way thathelps the learner to learn complex theory, algorithms and coding libraries ina straightforward way.This Data Science course is dived in ten different sections. 1. Dataprocessing 2. Regression 3. Classification 4. Clustering 5. Association Ruleis learning 6. Reinforcement Learning 7. Natural Language Processing 8. DeepLearning 9. Dimensionality Reduction and 10. Model Selection & Boosting.Course link: https://www.udemy.com/machinelearning/

## 🚀 Which are the Best Online Data Science Courses?

Following are some of the best online data science courses: * Careers in Data Science A-Z by Udemy * Data Science Specialization by Coursera * Data Science Essentials by Edx * Data Science Foundations: Fundamentals by Linkedin * Data Scientist with Python by DataCamp * Data Science and Machine Learning Bootcamp with R by Udemy * Applied Statistical Modeling for Data Analysis in R * Tableau Expert: Top Visualization Techniques in Tableau 10 * Python for Data Science by Edx

## Ratios of data engineers to data scientists

A common issue is to figure out the ratio of data engineers to datascientists. The general things to consider when choosing a ratio is howcomplex the data pipeline is, how mature the data pipeline is, and the levelof experience on the data engineering team.Having more data scientists than data engineers is generally an issue. Ittypically means that an organization is having their data scientists do dataengineering. As Iâve shown, this leads to all sorts of problems.A common starting point is 2-3 data engineers for every data scientist. Forsome organizations with more complex data engineering requirements, this canbe 4-5 data engineers per data scientist. This includes organizations wheredata engineering and data science are in different reporting structures. Youneed more data engineers because more time and effort is needed to create datapipelines than to create the ML/AI portion.I talk more about how data engineering and data science teams should interactwith each other in my book Data Engineering Teams.

## Data Engineers doing data science

A far less common case is when a data engineer starts doing data science.There is an upward push as data engineers start to improve their math andstatistics skills. This upward push is becoming more common as data sciencebecomes more standardized. Itâs leading to a brand new type of engineer.

## Machine learning engineers and data engineers

The transition of data engineer to machine learning engineer is a slow-movingprocess. To be honest, weâre going to see similar revisions to what amachine learning engineer is to what weâve seen with the definition of datascientists.To explain what I mean by slow moving, I will share the experience of thosewho Iâve seen make the transition from data engineer to machine learningengineer. Theyâve spent years doing development work as a software engineerand then data engineer. Theyâve always had an interest in statistics ormath. Other times, they just got bored with the constraints of being a dataengineer. Either way, this transition took years. Iâm not seeing peoplebecome machine learning engineers after taking a beginning stats class orafter taking a beginning machine learning course.As I much as I razz the data scientists for being academics, data engineersarenât the right people, either. An engineer loves trues and falses, theblack and white, and the ones and zeros of the the world. They donât likeuncertainty. With machine learning, there is a level of uncertainty of themodelâs guess (engineers donât like guessing, either). Unlike mostengineers, a machine learning engineer can straddle the certainty of dataengineering and the uncertainty of data science.

## What Does a Machine Learning Engineer Do?

Machine learning engineers sit at the intersection of software engineering anddata science. They leverage big data tools and programming frameworks toensure that the raw data gathered from data pipelines are redefined as datascience models that are ready to scale as needed.Machine learning engineers feed data into models defined by data scientists.They’re also responsible for taking theoretical data science models andhelping scale them out to production-level models that can handle terabytes ofreal-time data.Machine learning engineers also build programs that control computers androbots. The algorithms developed by machine learning engineers enable amachine to identify patterns in its own programming data and teach itself tounderstand commands and even think for itself.

## How Much Does a Data Scientist Make?

What data scientists make annually also depends on the type of job and whereit’s located. Remember, it is a much broader role than machine learningengineer. That said, according to Glassdoor, a data scientist role with amedian salary of $110,000 is now the hottest job in America.As the demand for data scientists and machine learning engineers grows, youcan also expect these numbers to rise.Related: Machine Learning Engineer Salary Guide

## R vs. Python for data science: Usage

When it comes to usage in data science, experts are divided in their opinions.Some data scientists prefer R to Python because of its visualization librariesand interactive style. R comes with great abilities in data visualization,both static and interactive. Interactive visualization built with R packageslike Plotly, Highcharter, Dygraphs, and Ggiraph take the interaction betweenthe users and the data to a new level.But again, if you are looking for higher performance or structured code Pythonis the go-to language. It is because Python has some of the best librariessuch as SciKit-Learn, IPython, numpy, scipy, matplotlib, etc. NumPy is thefoundational library for scientific computing in Python, and it introducesobjects for multi-dimensional arrays and matrices, as well as routines thatallow developers to perform advanced mathematical and statistical functions onthose arrays with fewer codes. Matplotlib is the standard Python library forcreating 2D plots and graphs.Both Python and R have their individual merits. So, if you are a newbieworking on a data science project, then I would advise you to use both R andPython interchangeably.

## What does a machine learning engineer do?

In practical terms, the job of a machine learning engineer is close to that ofa data scientist. Both roles work with vast quantities of information, requireexceptional data management skills and the ability to perform complex modelingon dynamic data sets.But here the similarity ends. Data professionals produce insights, usually inthe form of charts or reports that are presented to a human audience. Machinelearning engineers, on the other hand, design self-running software toautomate predictive models. Each time the software performs an operation, ituses those results to carry out future operations with a greater degree ofaccuracy. This is how the software, or machine, “learns.”A well-known example of ML is the recommendation algorithm of Netflix, Amazonand other consumer-facing services. Each time a user watches a video orsearches for a product, these sites add more data points to its algorithm. Asthe amount of data grows, the algorithm’s recommendations to the user forother content become more accurate — all without any kind of humanintervention.ML is closely related to AI, and ML encompasses deep learning (DL). Thissubfield uses artificial neural networks to “think” and solve complex problemswith multi-layered (deep) data sets. Some commons examples of DL includevirtual assistants, translation apps, chatbots and driverless cars. Over time,these technologies will become even more accurate and practical.

## Why machine learning engineers are in demand

Businesses today are awash in data, from customer interactions to IoTnetworks. Attempting to process all that information manually is like drinkingfrom a fire hose. Machine learning has become essential for taking fulladvantage of a company’s data.Applications of ML are as varied as the data itself. A few common applicationsinclude: * Image and speech recognition — Machine learning excels at auto-tagging images, text-to-speech conversions and anything else that requires turning unstructured data into useful information. * Customer insight — Association rule learning, the way ML software makes connections, drives the algorithms at the heart of e-commerce, telling consumers who buy product A that they might like product X. * Risk management and fraud prevention — ML algorithms can analyze huge volumes of historical data to make financial predictions, from future investment performance to the risk of loan defaults. Regression testing also makes it easier to spot fraudulent transactions in real time.

## What to expect in a machine learning engineer job description

Because ML is an emerging role, not many IT specialists have direct experiencewith it. That’s why most machine learning engineer job descriptions today seekout data scientists with a programming background.The reverse can also be true: Coders and programmers with solid data skillscan transition to become machine learning engineers, though they may needexperience in a data role beforehand.A job description for machine learning engineers typically includes thefollowing: * Advanced degree in computer science, math, statistics or a related discipline * Extensive data modeling and data architecture skills * Programming experience in Python, R or Java * Background in machine learning frameworks such as TensorFlow or Keras * Knowledge of Hadoop or another distributed computing systems * Experience working in an Agile environment * Advanced math skills (linear algebra, Bayesian statistics, group theory) * Strong written and verbal communications

## Machine learning engineer salary

As a fairly new job title, there aren’t enough data points to give adefinitive range for machine learning engineer salaries. However, as this rolelies between data science and software engineering, your could use informationfrom the Robert Half Technology 2020 Salary Guide to make a fairly accurateestimate of how much employers are likely to offer potential new hires. Hereare some starting salary midpoints (national median salary) for relatedpositions: * Big data engineer: $163,250 * Data architect: $141,250 * Data scientist: $125,250 * Data modeler: $101,750 * Developer/programmer analyst: $108,500 * Software engineer: $125,750

## 2. Machine learning and data science is the most sought-after group of

software engineersAnd while the average software engineer already gets a lot of attention fromrecruiters, certain specialties and skillsets tend to draw even higheroutreach volume.Here is how the supply of software engineering talent stacks up relative todemand from companies:Engineers specializing in machine learning & data science top the overallgroup when it comes to market demand albeit their talent pool is the smallest.They are followed by those who work in mobile and front-end development, twoof the specialties with larger talent pools. And if you need to hire test andquality assurance talent, you’ll likely have an easier time relative to otherspecialties.”