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How to get the summary of data from a data frame in R

Onyejiaku Theophilus Chidalu

Overview

A data frame in R represents the data displayed in a table format. Like a table with columns and rows, a data frame can contain different data types inside it.

How to create a data frame

In R, we use the data.frame() function to create a data frame.

Example

# creating a data frame
My_Data_Frame <- data.frame (
  Height = c("Tall", "Average", "short"),
  Body_structure = c("Meso", "Endo", "Ecto"),
  Age = c(35, 30, 45)
)

# Print the data frame
My_Data_Frame
Creating a data frame

Explanation

  • Line 2: We use the data.frame() function to create a data frame variable My_Data_frame. This data frame contains three columns.
  • Line 9: We print the data frame.

How to summarize data from a data frame

We use the summary() function to summarize the data from a data frame.

Syntax

summary(data frame)

Parameter value

This function takes the data frame object as its single parameter value.

Return value

This function returns a summary (statistical inference) of the data frame.

Example

# creating a data frame
My_Data_frame <- data.frame (
  Height = c("Tall", "Average", "Short", "Tall"),
  Body_structure = c("Meso", "Endo", "Ecto", "Endo"),
  Age = c(35, 30, 45, 25)
)

# Print the data frame
My_Data_frame

# Summarizing the data
summary(My_Data_frame)
Summarizing a data frame using the summary() function

Explanation

This is similar to the previous example, except we use the summary() function to summarize the data frame My_Data_frame. This can be observed from the output of the code.

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Onyejiaku Theophilus Chidalu
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