Generate a set of Sample data from a Data set in R Programming - sample() Function

Create a Tabular representation of Data in R Programming - table() Function

Last Updated : 19 Jun, 2020

table() function in R Language is used to create a categorical representation of data with variable name and the frequency in the form of a table.

Syntax: table(x) Parameters: x: Object to be converted

Example 1:

Python3 1==

# R Program to create 
# a tabular representation of data

# Creating a vector
vec = c(2, 4, 3, 1, 2, 3, 2, 1, 4, 2) 

# Calling table() Function
table(vec)

Output:

vec
1 2 3 4 
2 4 2 2

Example 2:

Python3 1==

# R Program to create 
# a tabular representation of data

# Creating a data frame 
df = data.frame(  
  "Name" = c("abc", "cde", "def"),  
  "Gender" = c("Male", "Female", "Male") 
)  
  
# Calling table() function 
table(df)

Output:

     Gender
Name  Female Male
  abc      0    1
  cde      1    0
  def      0    1

Generate a set of Sample data from a Data set in R Programming - sample() Function

N

nidhi_biet

Improve

Article Tags :

Similar Reads

Reading contents of a Text File in R Programming - read.table() Function

The read.table() function in R can be used to read a text file's contents. A versatile and often used function for reading tabular data from different file formats, including text files, is read.table(). It returns the data in the form of a table.Syntax: read.table(filename, header = FALSE, sep = ""

Convert an Object to a Table in R Programming - as.table() Function

as.table() function in R Language is used to convert an object into a table. Syntax: as.table(x) Parameters: x: Object to be converted Example 1: Python3 1== # R Program to convert # an object to a table # Creating a vector vec = c(2, 4, 3, 1, 2, 3, 2, 1, 4, 2) # Calling as.table() Function as.table

Reading Tabular Data from files in R Programming

Often, the data which is to be read and worked upon is already stored in a file but is present outside the R environment. Hence, importing data into R is a mandatory task in such circumstances. The formats which are supported by R are CSV, JSON, Excel, Text, XML, etc. The majority of times, the data

Condense Column Values of a Data Frame in R Programming - summarise() Function

summarise() function in R Language is used to condense various values of column of a data frame to one value. Syntax: summarise(x, expr) Parameters: x: Data Frame expr: Operation to condense data Example 1: Python3 1== # R program to condense data # of a data frame # Loading library library(dplyr) #

Generate a set of Sample data from a Data set in R Programming - sample() Function

sample() function in R Language creates random sample based on the parameters provided in the function call. It takes either a vector or a positive integer as the object in the function parameter. Syntax: sample(x, size, replace) Parameters: x: indicates either vector or a positive integer or data f

Scan and Read Data from a File in R Programming - scan() Function

scan() function in R Language is used to scan and read data. It is usually used to read data into vector or list or from file in R Language. Syntax: scan("data.txt", what = "character") Parameter: data.txt: Text file to be scanned Returns: Scanned output Example 1: Scanning of Text r # R Program to

Check if an Object is a Table in R Programming - is.table() Function

is.table() function in R Language is used to check if an object is a table. Syntax: is.table(x) Parameters: x: Object to be checked Example 1: Python3 1== # R Program to check # if an object is a table # Creating a vector vec = c(2, 4, 3, 1, 2, 3, 2, 1, 4, 2) # calling is.table() Function is.table(v

Read contents of a CSV File in R Programming - read.csv() Function

read.csv() function in R Language is used to read "comma separated value" files. It imports data in the form of a data frame. The read.csv() function also accepts a number of optional arguments that we can use to modify the import procedure. we can choose to treat the first row as column names, sele

Take Random Samples from a Data Frame in R Programming - sample_n() Function

sample_n() function in R Language is used to take random sample specimens from a data frame. Syntax: sample_n(x, n) Parameters: x: Data Frame n: size/number of items to select Example 1: Python3 1== # R program to collect sample data # from a data frame # Loading library library(dplyr) # Create a da

Read Lines from a File in R Programming - readLines() Function

readLines() function in R Language reads text lines from an input file. The readLines() function is perfect for text files since it reads the text line by line and creates character objects for each of the lines. Syntax: readLines(path) Parameter: path: path of the file Example 1: Python3 # R progra