Your First "Hello World" Program | Introduction R Programming | Part 1

Key Takeaways

[Music] hi there welcome to this data science dojo video series on learning our in basic programming for data science this introduction to our video series will not only get you up to speed an hour but also programming 101 or programming foundations it's intended for people with little to no background in programming or any experience in programming so it's a gentle and efficient way to get you up to speed once you know how to make these commands in are you're pretty much set to follow along the bootcamp without much struggle on the coding side of things so if you haven't done so already and still are in our studio you can go to our tutorials site you just see getting started video in the our section of this installing our own Windows OSX and Linux so your first program you ever write in any programming language is your classic hello world print statement here so we're basically going to create a variable name and assign or store string values so the words hello well to that variable and use the print function to print out the variable to what we just stored inside that variable we will explain assigning variables inputs into functions what a string data type is and what is a variable further on the series but this is just to give you an idea of the core concepts of our programming that you'll learn throughout the series so let's start this basic hello world program from scratch so to easily edit our code we're going to open up a new a script file here and a panel will pop up for us to start writing our code we can also directly write our code in this window here sometimes it's just easier to write code and I kind of control the editor window any output after running our code will appear in the other window here so we'll store hello world inside a variable so let's give our variable a name and call this hello string now we need to store a string or tie that string to a variable so we'll use this operator to tie it to a variable and what we wanted tie to that variable is the string of characters hello world in programming sometimes we read things backwards so there's a data value here that we tie or assign to a variable here what color variables are more detailed later on in the series now we want to print our variables so we'll use the print function for this and inside this function we feed it what we want to print which is our variable that stores the string color wells all right so let's run these lines of code if you just place your cursor either at the end or the beginning of the line or you can highlight it as well we'll just hit this Run button here okay great it's successfully output the string hello world we have just coded our first program that prints hello world in our this is even more efficient because we don't even have to reuse the print function for this we can just use the barium like the variable name hello string and it will print the output string so I show you what I mean here if we type hello world oh hello string we hit run we'll see it successfully also printed hallo world in the next video we'll cover our main atomic datatypes