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R vs Python, Which one is better

A discussion of which programming language R vs Python often turns (quickly) into a religious war of words that  never becomes fully resolved. You will find that you do not have the luxury of language bias. There will be times when one language shines in one area while a different one shines in another, and you need the skills of a diplomat to bring them both together to solve real problems.

To be honest in both R/RStudio and Python/IPython/pandas, as they are the two leading data analysis languages/environments with broad similarities but also with unique elements that make them work well for some tasks and not others. As you read about the rationale behind each choice and as you become proficient in one or both environments, you will understand the difference.

For readers with an existing programming background, getting up to speed with Python should be pretty straightforward and you can expect to be fairly proficient within 3–6 months, especially if you convert Why Python? some of your existing scripts over to it as a learning exercise. Your code may not be “pythonic” (that is, utilizing the features, capabilities, and the syntax of the language in the most effective way), but you will be able to “get useful stuff done.” For a beginner in statistical languages, becoming proficient in R may pose more of a challenge. Statisticians created R, and that lineage becomes fairly obvious as you delve into the language. If you can commit to suffering through R syntax and package nuances, plus commit to transitioning some of your existing Excel workflows into R, you too should be able to hang with the cool kids on the #rstats Twitter stream in 3–6 months

Why Choose Python?

Guido van Rossum created the Python programming language in December of 1989 to solve a problem. He and his colleagues needed a common way to orchestrate system administration tasks that could take advantage of specific features in the operating systems they were using at that time. Although there were existing interpreted, administrator friendly tools and languages available, none were designed (from Guido van Rossum’s point of view) with either the flexibility or extensibility features baked into the design principles of Python.

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Python Programming Language

Python’s flexibility and extensibility (and the fact that it was free as in both “speech” and “beer”) were especially appealing to the scientific, academic, and industrial communities starting in the early 2000s. Innovators in these fields quickly adapted this general-purpose programming language to their own disciplines to solve problems easier than ostensibly the domain specific languages available at that time.

You have to search long and hard to find a file-type Python cannot read, a database Python cannot access, and an algorithm Python cannot execute. As you familiarize yourself with the language, Python’s ability to acquire, clean, and transform source data will quickly amaze you, but those tasks are just the early steps in your analysis and visualization process. It wasn’t until 2008 that the pandas module was created by AQR Capital Management to provide “Pythonic” counterparts to the analytical foundations of languages like R, SAS, or MATLAB, which is where the “real fun” begins.

Although Python’s interpreter provides an interactive execution shell, aficionados recognized the need to extend this basic functionality and developed an even more dynamic and robust interactive environment IPython to fill the need. When coupled with the pandas module, budding data analysts now have a mature and data centric toolset available to drive their quest for knowledge.

Why Choose R Programming Language ?

R-vs-Phyton-Which-one-is-better R vs Python, Which one is better

R programming Language

Unlike Python, R’s history is inexorably tied to its domain specific predecessors and cousins, as it is 100 percent focused and built for statistical data analysis and visualization. Although it too can access and manipulate various file types and databases (and was also designed for flexibility and extensibility), R’s lisp- and S-like syntax plus extreme focus on foundational analytics-oriented data types has kept it, mostly, in the hands of the “data crunchers.”

Base R makes it remarkably simple to run extensive statistical analyses on your data and then generate informative and appealing visualizations with just a few lines of code. More modern R libraries such as plyr and ggplot2 extend and enhance these base capabilities and are the foundations of many of mind- and eye-catching examples of cutting-edge data analysis and visualization you have no doubt come across on the Internet.

Like Python, R also provides an interactive execution shell that has enough basic functionality for general needs. Yet, the desire for even more interactivity sparked the development of RStudio, which is a combination of integrated development environment (IDE), data exploration tool, and iterative experimentation environment that exponentially enhances R’s default capabilities.

Conclusion of R vs Python

If all you have is a hammer, everything starts looking like a nail. There are times when the flexibility of a general-purpose programming language comes in very handy, which is when you use Python. There are other times when three lines of R code will do something that may take 30 or more lines of Python code (even with pandas) to accomplish. Since your ultimate goal is to provide insightful and accurate analyses as quickly and as visually appealing as possible, knowing which tool to use for which job is a critical insight you must develop to be as effective and efficient as possible.

We would be a bit dishonest, though, if we did not concede that there are some things that Python can do (easily or at all) that R cannot, and vice-versa. We touch upon some of these in the use cases throughout, but many of the—ah—“learning opportunities” will only come from performing your own analyses, getting frustrated (which is the polite way of saying “stuck”), and finding resolution by jumping to another tool to “get stuff done.” This situation comes up frequently enough that there is even an rJython package for R that lets you call Python code from R scripts, and rpy and rpy2 modules for Python that let you call R code from Python scripts.

By having both tools in your toolbox, you should be able to tackle most, if not all, of the tasks that come your way. If you do find yourself in a situation where you need functionality you don’t have, both R and Python have vibrant communities that are eager to provide assistance and even help in the development of new functions or modules to fit emerging needs. So discussion about Which one is better R vs Python would be meaningless. Both have their own benefits.

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One thought on “R vs Python, Which one is better

  1. ATM says:

    I have been in tech for more years that I care to remember and wars are not over what product is better, but over business adoption and user adoption. If a big player like .gov says all analytics and products will be delivered in asymbly language everone will switch to A. On the other side of the coin you have to look at the talent that is adopting each language. What is the background and skills of the average R user vs the skills of the average python user. Who has a better understanding of business, who is a better hacker, who understands the science behind data science, who can perform a satifactory analysis. Who can deliver on time to what business need. Ultimately each user class and language will find it’s nitch or fade away. In the ompany where I work python was winning for one symple reason. The Ph D R data scientist was on the wish list, but cost too much. However that is changing now because deveping an internal resourced python programmer may be just fine for many things but may be hard on project time lines and final quality. Whatever the next generation of applied and theroretical mathematicians adopt will be the high end side of the game. Things change fast in technology and it may not be R or Python.

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