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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).

Завдання

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.

Все було зрозуміло?

Секція 2. Розділ 9
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Зміст курсу

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).

Завдання

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.

Все було зрозуміло?

Секція 2. Розділ 9
toggle bottom row
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