How to get the structure of Dataframe in R?

Data Science, AI and ML
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Getting the structure of R Data Frame

In R, we can find the structure of our data frame. R provides an in-build function called str() which returns the data with its complete structure. In below example, we have created a frame using a vector of different data type and extracted the structure of it.

Example

# Creating the data frame.  
emp.data<- data.frame(  
employee_id = c (1:5),   
employee_name = c("Shubham","Arpita","Nishka","Gunjan","Sumit"),  
sal = c(623.3,515.2,611.0,729.0,843.25),   
  
starting_date = as.Date(c("2012-01-01", "2013-09-23", "2014-11-15", "2014-05-11",  
      "2015-03-27")),  
stringsAsFactors = FALSE  
)  
# Printing the structure of data frame.           
str(emp.data)

Output

'data.frame':   5 obs. of  4 variables:
 $ employee_id  : int  1 2 3 4 5
 $ employee_name: chr  "Shubham" "Arpita" "Nishka" "Gunjan" ...
 $ sal          : num  623 515 611 729 843
 $ starting_date: Date, format: "2012-01-01" "2013-09-23" ...