- #R STATISTICS DOWNLOAD MAC HOW TO#
- #R STATISTICS DOWNLOAD MAC SOFTWARE#
- #R STATISTICS DOWNLOAD MAC CODE#
The most basic interaction with R is available once you get the cursor active at the command prompt ">".
#R STATISTICS DOWNLOAD MAC CODE#
The lower left panel in R-studio is called the "console" window and is where you can type R code directly into R or where you will see the code you run and (most importantly!) where the results of your executed commands will show up. R-studio makes the management and execution of code more efficient than the basic version of R.
#R STATISTICS DOWNLOAD MAC SOFTWARE#
R is command-line software - meaning that most of the time you have to create code and then execute it to get any results. The added notes can help you get initially oriented to the software interface. When you open R-studio, you will see a screen like Figure 0-2. Now we get to complete some basic tasks in R using the R-studio interface. Sometimes code will not work in older versions of R and sometimes old code won't work in new versions of R 3.
Note that both R and R-studio are updated frequently (up to four times a year) and if you downloaded either more than a few months previously, you should download the up-to-date versions, especially if something you are trying to do is not working. From this point forward, you should only open R-studio it provides your interface with R. Go to and select the "installer" for your operating system under the column for "Installers for all platforms". It is an enhanced interface that will make interacting with R less frustrating. Go to and click on the "Download R for." button that corresponds to your operating system.
It is the engine that will do all the computing for us, but you will only interact with it once. You will have two downloading activities to complete before you can do anything more than read this book. In Chapter 1, we will exploit the power of R to compare quantitative responses from two groups, making some graphical displays, doing hypothesis testing and creating confidence intervals in a couple of different ways.
#R STATISTICS DOWNLOAD MAC HOW TO#
Everyone that learns R starts with copying other people's code and then making changes for specific applications - so expect to go back to examples and learn how to modify that code to work for your particular data set. We will try to keep all of your interactions with R code in a similar coding form and that should help your learning how to use R as we move through various methods. Do not expect to master R quickly - it takes years (sorry!) even if you know all the statistical methods being used. The next pages will walk you through the process of getting the software downloaded and provide you with an initial experience using R-studio to do things that should look familiar even though the interface will be a new experience. Hopefully you will get a sense of some of the power of R this semester. R is becoming the primary language of statistics and is being adopted across academia, government, and businesses to help manage and learn from the growing volume of data being obtained. This means that the skills you learn now can follow you the rest of your life. They are open source and free to download and use (and will always be that way). You will need to download the statistical software package called R and an enhanced interface to R called R-studio (Rstudio, 2014). This book and access to a computer (PC, Mac, or just computer lab computers on campus) are the only required materials for the course.
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