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Variables | Basic Syntax and Operations
R Introduction: Part I

Conteúdo do Curso

R Introduction: Part I

## R Introduction: Part I

1. Basic Syntax and Operations
2. Basic Data Types and Vectors
3. Factors

# Variables

Saving and reusing data effectively in programming often requires the use of variables.

To ensure clear and error-free programming, certain rules must be followed when naming variables. Here are some guidelines:

• Variable names must not start with a number or with a period followed by a number;
• They should not include the `%` symbol;
• They must not begin with an underscore `_`;
• They can start with a period if it is not followed by a number.

Choosing meaningful variable names is considered best practice. For instance, naming a variable `year` to store the value `2020` is more intuitive than using nondescript names like `a` or `b`. While this isn't mandatory, it significantly enhances code readability for both the author and others.

To assign a value to a variable, the assignment operator `=` is used. For example, `year = 2020` assigns the value `2020` to the variable named `year`:

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tudo estava claro?

Seção 1. Capítulo 8

# Variables

Saving and reusing data effectively in programming often requires the use of variables.

To ensure clear and error-free programming, certain rules must be followed when naming variables. Here are some guidelines:

• Variable names must not start with a number or with a period followed by a number;
• They should not include the `%` symbol;
• They must not begin with an underscore `_`;
• They can start with a period if it is not followed by a number.

Choosing meaningful variable names is considered best practice. For instance, naming a variable `year` to store the value `2020` is more intuitive than using nondescript names like `a` or `b`. While this isn't mandatory, it significantly enhances code readability for both the author and others.

To assign a value to a variable, the assignment operator `=` is used. For example, `year = 2020` assigns the value `2020` to the variable named `year`:

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tudo estava claro?

Seção 1. Capítulo 8

# Variables

Saving and reusing data effectively in programming often requires the use of variables.

To ensure clear and error-free programming, certain rules must be followed when naming variables. Here are some guidelines:

• Variable names must not start with a number or with a period followed by a number;
• They should not include the `%` symbol;
• They must not begin with an underscore `_`;
• They can start with a period if it is not followed by a number.

Choosing meaningful variable names is considered best practice. For instance, naming a variable `year` to store the value `2020` is more intuitive than using nondescript names like `a` or `b`. While this isn't mandatory, it significantly enhances code readability for both the author and others.

To assign a value to a variable, the assignment operator `=` is used. For example, `year = 2020` assigns the value `2020` to the variable named `year`:

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Tudo estava claro?

Saving and reusing data effectively in programming often requires the use of variables.

To ensure clear and error-free programming, certain rules must be followed when naming variables. Here are some guidelines:

• Variable names must not start with a number or with a period followed by a number;
• They should not include the `%` symbol;
• They must not begin with an underscore `_`;
• They can start with a period if it is not followed by a number.

Choosing meaningful variable names is considered best practice. For instance, naming a variable `year` to store the value `2020` is more intuitive than using nondescript names like `a` or `b`. While this isn't mandatory, it significantly enhances code readability for both the author and others.

To assign a value to a variable, the assignment operator `=` is used. For example, `year = 2020` assigns the value `2020` to the variable named `year`:

Tarefa

Regarding the deposit task, let's assign the relevant data to variables using the assignment operator:

1. Assign the initial amount of money, `2000`, to the variable named `initial_money`.
2. Assign the interest rate, `13`, to the variable named `interest_rate`.
3. Assign the number of years, `4`, to the variable named `n_years`.
4. Use the `cat()` function to display the values of `initial_money`, `interest_rate`, and `n_years` in the order they were created.

Seção 1. Capítulo 8
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