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R Introduction: Part I
course content

Course Content

R Introduction: Part I

R Introduction: Part I

1. Basic Syntax and Operations
Why R?Basic ArithmeticUsing the print() Function Comments in RInteger Division and RemaindersExponentiationcat() FunctionVariablesRevenue CalculationAssignment Operators
2. Basic Data Types and Vectors
Data TypesNumbersType ConversionLogical TypesVectorsLabeling VectorsIndexing in VectorsModifying VectorsDeleting Elements from VectorsArithmetic Operations with Vectors
3. Factors
What is a Factor?Indexing in FactorsLevelsCounting ValuesGrouping Numeric DataGrades Summary

bookComments in R

When you've written an extensive script for research and need to revisit it later for updates or improvements, remembering the purpose of each line of code can be challenging. That’s where annotations within the code, known as comments, become invaluable.

For instance, we can add comments in two ways: as a standalone line and alongside a computation:


              
12

            
# Some calculation
11 + 3 # eleven plus three
copy

The console will only show the result of 11 + 3 and ignore all the comments.

Comments are useful not just for clarification, but also for debugging purposes, allowing you to deactivate certain lines of code without deleting them.

Task

To make the code executable by deactivating certain lines, apply the hash # symbol to correct the errors.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 4
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bookComments in R

When you've written an extensive script for research and need to revisit it later for updates or improvements, remembering the purpose of each line of code can be challenging. That’s where annotations within the code, known as comments, become invaluable.

For instance, we can add comments in two ways: as a standalone line and alongside a computation:


              
12

            
# Some calculation
11 + 3 # eleven plus three
copy

The console will only show the result of 11 + 3 and ignore all the comments.

Comments are useful not just for clarification, but also for debugging purposes, allowing you to deactivate certain lines of code without deleting them.

Task

To make the code executable by deactivating certain lines, apply the hash # symbol to correct the errors.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 4
toggle bottom row

bookComments in R

When you've written an extensive script for research and need to revisit it later for updates or improvements, remembering the purpose of each line of code can be challenging. That’s where annotations within the code, known as comments, become invaluable.

For instance, we can add comments in two ways: as a standalone line and alongside a computation:


              
12

            
# Some calculation
11 + 3 # eleven plus three
copy

The console will only show the result of 11 + 3 and ignore all the comments.

Comments are useful not just for clarification, but also for debugging purposes, allowing you to deactivate certain lines of code without deleting them.

Task

To make the code executable by deactivating certain lines, apply the hash # symbol to correct the errors.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

When you've written an extensive script for research and need to revisit it later for updates or improvements, remembering the purpose of each line of code can be challenging. That’s where annotations within the code, known as comments, become invaluable.

For instance, we can add comments in two ways: as a standalone line and alongside a computation:


              
12

            
# Some calculation
11 + 3 # eleven plus three
copy

The console will only show the result of 11 + 3 and ignore all the comments.

Comments are useful not just for clarification, but also for debugging purposes, allowing you to deactivate certain lines of code without deleting them.

Task

To make the code executable by deactivating certain lines, apply the hash # symbol to correct the errors.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 1. Chapter 4
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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