Difference between revisions of "R/C2/Working-directories-in-RStudio/English-timed"

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Latest revision as of 15:04, 22 May 2020

Time Narration

00:01 Welcome to this tutorial on Working directories in RStudio.
00:07 In this tutorial, you will learn about:
00:11 Working directories in Rstudio
00:15 How to read and store csv files in R
00:20 To understand this tutorial, you should know:
00:24 R and RStudio
00: 27 Basic commands of R
00:30 If not, please locate the relevant tutorials on R on this website.
00:37 This tutorial is recorded on
00:41 Ubuntu Linux OS 16.04
00:46 R version 3.2.3
00:50 RStudio version 1.1.456
00:56 Install R version 3.2.0 or higher.
01:02 We will use the captaincy data set which we created earlier in this series.
01:08 Download this data set CaptaincyData.csv from the Code files link of this tutorial.
01:18 I have downloaded and moved this data set to the folder myProject on my Desktop.
01:27 I shall set this folder as my Working Directory.
01:33 Remember we had created two scripts, myfirstscript.R and mysecondscript.R
01:43 Both were saved in the folder myProject, on the Desktop.
01:49 R always points to a default directory on our computer
01:55 This directory is where R will look, by default, for files you ask it to load.
02:03 We will find out what our current Working Directory is.
02:07 Let us switch to RStudio.
02:12 In the Console window, type getwd parentheses and press Enter.
02:21 The current Working Directory is shown in the Console.
02:26 Note down the directory path.
02:29 Now, we will learn how to set our Working Directory.
02:35 I will set the folder myProject on my Desktop as my Working Directory.
02:43 I am maximizing the Files and Plots window of RStudio.
02:49 At the top of the Files and Plots window, click on the Files tab.
02:57 Go to the upper right corner of the same window.
03:02 Below the refresh icon, click on the button with three dots.
03:09 Go To Folder window appears.
03:13 Select the folder which you want to make as your Working Directory and click Open.
03:21 I am selecting myProject located on my Desktop.
03:27 Under Files tab, you can see that the two scripts created earlier, have been loaded.
03:35 Now, below the Files tab, click on the More button with the blue gear symbol.
03:43 From the dropdown menu, select the Set As Working Directory option.
03:50 Now this folder is set as your Working Directory.
03:56 You may verify this by looking at the Console.
04:00 Now, I am minimizing the Files and Plots window.
04:05 There is one other way to set the Working Directory also.
04:11 In the Console, type setwd.
04:15 Now, inside parentheses, type the desired folder path within double quotes.
04:23 Press Enter.
04:25 Now, we will learn how to read and store a csv file called CaptaincyData.csv.
04:34 We shall declare a variable captaincy to store CaptaincyData.csv.
04:41 In the Console window, type captaincy space equal sign space read.csv
04:50 Now, CaptaincyData.csv inside double quotes in parentheses and press Enter.
05:01 read.csv function is used to read a file and to create a data-frame from it.
05:10 Now, we use View function to see the stored data frame.
05:16 In the Console window, type View captaincy in parentheses and press Enter.
05:25 The contents of captaincy data frame appears in the Source window.
05:31 I am maximizing the Source window to see the captaincy data set.
05:37 This brings us to the end of this tutorial. Let us summarize.
05:44 In this tutorial, we have learned
05:46 How to get and set a working directory
05:50 How to read and store a csv file
05:54 We now suggest an assignment.
05:58 Create a new folder on your computer and make it your Working Directory.
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