This interactive R course covers everything from the basics, variables, and data types to advanced topics, such as recursion, file handling, and S3/S4 classes in R.

In today’s data-driven world, the ability to analyze large datasets is becoming a vital skill across industries. R, one of the most powerful languages for data analysis.
This interactive R course is designed for beginners, with no prior knowledge of R programming required. You will begin with fundamental concepts, such as R variables, data types in R, and basic functions like R print and R cat. As you progress, you will dive into more complex topics, including R vectors, lists, arrays, matrices, and data frames in R programming. You’ll also learn how to perform operations using arithmetic operators in R, relational operators in R, and logical operators in R. Further, the course covers advanced features like if statements in R, switch statements in R, loops in R, and recursion in R. 
Finally, you’ll gain hands-on experience with file handling in R, exception handling with try and except in R, and object-oriented programming using S3 and S4 classes in R.

Learn R

The syntax for `readLines()` function is:

```r
x <- readLines("Enter:")
```

The syntax for <code>readLines()</code> function is:
<pre><code class="language-r">x &lt;- readLines(&quot;Enter:&quot;)
</code></pre>

The `readLines()` function reads a line from a file.

The <code>readLines()</code> function reads a line from a file.

```r
fileData <- file(path, fileData = "r")
```

```r
fileData <- file(path, open = "r")
```

```r
fileData <- file(open = "r", path)
```

The correct syntax for opening a `.txt` file is

The correct syntax for opening a <code>.txt</code> file is

To read a `.txt` file we just need the name of the file.

To read a <code>.txt</code> file we just need the name of the file.

By default, the `readLines()` function returns an integer type object.

By default, the <code>readLines()</code> function returns an integer type object.

The function `as.integer()` converts the given parameter to an integer type object and returns it.

The function <code>as.integer()</code> converts the given parameter to an integer type object and returns it.

The correct syntax for the `write()` function is:
```r
write(<dataToBeWritten>, <pathOfFile>)
```

The correct syntax for the <code>write()</code> function is:
<pre><code class="language-r">write(&lt;dataToBeWritten&gt;, &lt;pathOfFile&gt;)
</code></pre>

CSV stands for Character Separated Values.

CSV stands for Character Separated Values.

The function `read.csv()` returns a dataframe of values fetched from the given file.

The function <code>read.csv()</code> returns a dataframe of values fetched from the given file.

We can write a data frame to a `.csv` file.

We can write a data frame to a <code>.csv</code> file.

Introduction to R

R variables

Data Structures in R

Operator in R

Conditional Statements in R

Loops in R

Function in R

Input/Output in R

Exception Handling in R

Classes in R

R Programming Challenges

Conclusion

Test Your Knowledge 7

Quiz on Input/Output in R language