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Data Extraction | Data Frames
R Introduction: Part II
course content

Conteúdo do Curso

R Introduction: Part II

R Introduction: Part II

1. Matrices
2. Data Frames
3. Lists

bookData Extraction

Finish the section with practice on abstract local furniture store selling data!

Tarefa

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

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Seção 2. Capítulo 7
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bookData Extraction

Finish the section with practice on abstract local furniture store selling data!

Tarefa

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 2. Capítulo 7
toggle bottom row

bookData Extraction

Finish the section with practice on abstract local furniture store selling data!

Tarefa

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Finish the section with practice on abstract local furniture store selling data!

Tarefa

You will work with the data below. This data is stored in the store variable.

ItemPriceSold
Sofa34067
Armchair15081
Dining table11579
Bookshelf16042
Kitchen Cabinet7067

Your tasks are:

  1. Add a new column named 'Revenue' with the revenue of each item (multiply 'Price' and 'Sold'). To access columns, use the $ sign.
  2. Using the sum() function, calculate the total number of items sold. Save in items_sold variable and output its value.
  3. Calculate total revenue using sum() function. Save in the total_revenue variable and output its value.
  4. Find out the average price of the sold item - divide total_revenue by items_sold.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 2. Capítulo 7
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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