Deleting Elements from Vectors | Basic Data Types and Vectors
R Introduction: Part I

# Deleting Elements from Vectors

Since you've learned how to add elements to a vector, it's only natural to learn how to remove them as well. Everything builds up to this.

To remove an element from a vector, use the `-` sign before the index of the element you wish to remove. Remember, this action doesn't directly overwrite your vector, so reassignment is usually necessary. To remove multiple elements, you can provide a vector of indices after the `-` sign. For instance, to remove the third element from the `grades` vector, the operation would look like this:

Similarly, to eliminate the second and fourth elements from the initial `grades` vector, you would proceed as follows:

Keep in mind that the operations shown in the examples will not permanently alter the original vectors. To save the changes, you need to reassign the result to the same vector (or to a new one, if needed).

Tarefa

From the previous task, you have the `prices` vector with the prices of 6 items. Your task is:

1. Remove the `'Dining chair'` item from the `prices` vector. This item is the fourth in the vector. Save the changes by reassignment.
2. Display the modified `prices` vector.

Tudo estava claro?

Seção 2. Capítulo 9

Conteúdo do Curso

R Introduction: Part I

# Deleting Elements from Vectors

Since you've learned how to add elements to a vector, it's only natural to learn how to remove them as well. Everything builds up to this.

To remove an element from a vector, use the `-` sign before the index of the element you wish to remove. Remember, this action doesn't directly overwrite your vector, so reassignment is usually necessary. To remove multiple elements, you can provide a vector of indices after the `-` sign. For instance, to remove the third element from the `grades` vector, the operation would look like this:

Similarly, to eliminate the second and fourth elements from the initial `grades` vector, you would proceed as follows:

Keep in mind that the operations shown in the examples will not permanently alter the original vectors. To save the changes, you need to reassign the result to the same vector (or to a new one, if needed).

Tarefa

From the previous task, you have the `prices` vector with the prices of 6 items. Your task is:

1. Remove the `'Dining chair'` item from the `prices` vector. This item is the fourth in the vector. Save the changes by reassignment.
2. Display the modified `prices` vector.

Tudo estava claro?

Seção 2. Capítulo 9