What is tibble versus data frame in R?
Tibble is a package in the R programming language that is used to manipulate and print data frames. It is the latest method for reimagining a data frame. It keeps all the crucial features regarding the data frame.
Key features of Tibble
- A Tibble never alters the input type.
- With Tibble, there is no need for us to be bothered about the automatic changing of characters to strings.
- Tibbles can also contain columns that are the lists.
- We can also use non-standard variable names in Tibble.
- We can start the name of a Tibble with a number, or we can also contain space.
- To utilize these names, we must mention them in backticks.
- Tibble only recycles the vectors with a length of 1.
- Tibble can never generate the names of rows.
Tibbles versus data frame
There are two main differences between Tibbles and the data frame:
- Printing
- Subsetting
Printing
Tibble has a more advanced print function. It shows only the first ten rows with all the columns that can be fit on the screen. Each column also shows the data types. It helps to avoid printing too much data automatically.
Subsetting
We can use the indexing for Tibbles in multiple ways:
df$y
df[["y"]]
df[[1]]
The pipe can also be used for submitting:
df %>% .$y
df %>% .[["y"]]
In the code snippet below, we have a data frame as a record of an employee:
# Creating the data frame.employee <- data.frame(employee_id = c (1:5),employee_name = c("JOHN","TIM","STARC","HARRY","TINA"),employee_salary = c(567.3,675.2,674.0,678.0,790.25),# employee starting datestarting_date = as.Date(c("2015-03-03", "2016-08-02", "2018-11-12", "2021-07-21","2016-01-06")),stringsAsFactors = FALSE)# Printing the data frame.print(employee)
Code explanation
- Line 2: We create a dataframe, using the
data.frame()method. - Lines 3–7: The fields of the
employeedata frame includeemployee_id,employee_name,employee_salary, andstarting_date. - Line 12: We print the
employeedata frame to the console.
In the code snippet below, we have a Tibble from tidyverse package:
# Program for tibble implementationlibrary("dplyr", warn.conflicts = FALSE)Section<-rep(c("A","B","C","D","E"),times=10)Ranking<-sample(1:10,50,replace=TRUE)dataframe<-data.frame(Section,Ranking)# first 5 entries of tibblehead(dataframe,5)# 5 entries from tail of tibbletail(dataframe,5)mylist <- dataframe %>% dplyr::group_by(Section,Ranking) %>% dplyr::mutate(count=n())print(mylist)
Code explanation
- Line 2: We import the
dplyrlibrary. - Line 3: We create a vector after the
Sectionname. Therep()function will replicate vector or list toNtimes, that is,times=10. - Line 4: We create a vector after the
Rankingname. Thesample()function will return 50 samples with values from 1 to 10, that is,1:10. - Line 5: We generate a
dataframe, using the vectors we created above(Section, Ranking). - Line 7: We print the first five entries of the data frame.
- Line 9: We print the last five entries of the data frame.
- Line 10: We create a list by grouping the data frame we created above and mutating the count that contains the number of observations, using the
n()function.
TRENDING TOPICS
