Summary  
This chapter explains how to use R’s print() function for printing output with controlled formatting, specifically rounding numerical results to a specified number of significant figures using the digits argument.

General domain of usage  
Data analysis

When R displays results, the output is often preceded by `[1]`. This marker indicates that the line begins with the first element of the result. For larger outputs, you will see additional markers such as `[2]`, `[3]`, and so on.

## Using print()
Although R automatically shows results, you can use the `print()` function to control how output is displayed. One of its options is the `digits` argument, which rounds numbers to a chosen number of significant figures.

```r
print(expression, digits = n)
```

Here, the output of `print()` is rounded to three significant figures, making results easier to read.

Gain a solid understanding of R, one of the most widely used languages for data analysis. Explore fundamental data types and one-dimensional values, then advance to multi-dimensional structures, including matrices, data frames, and lists. Build the skills needed to apply R effectively in statistical analysis and data-driven decision-making.

Learn the essentials of R syntax, such as arithmetic, variables, printing functions, and comments. Strengthen your understanding of computational logic through exercises.

Explore R's data types and understand their role in data handling. Build skills in working with vectors as essential structures for organizing and analyzing information.

Develop the ability to manage categorical data effectively. Discover how to structure, group, and interpret values by converting raw data into clear categories.

Understand how to represent and work with structured two-dimensional data. Build confidence in transforming, labeling, and applying operations to matrices for analytical tasks.

Master the most widely used data structure in R for tabular information. Learn to organize, transform, and extract insights from datasets to support data-driven decisions.

Learn how lists extend beyond vectors by storing elements of different types and lengths. Develop the ability to create, access, and modify lists for organizing complex data structures.

print() Function

Using print()

Example

Solution

Awesome!

print() Function

Using print()

Example

Solution