Dataframes in R Language

A data frame is a table or a two-dimensional array-like structure in which each column contains values of one variable and each row contains one set of values from each column.

Following are the characteristics of a data frame.

  • The column names should be non-empty.
  • The row names should be unique.
  • The data stored in a data frame can be of numeric, factor or character type.
  • Each column should contain same number of data items.

Dataframe are generic data objects of R which are used to store the tabular data. Data frames are the most popular data objects in R programming because it is more comfortable to analyze the data in the tabular form. Data frames can also be taught as mattresses where each column of a matrix can be of the different data types. Dataframe are made up of three principal components, the data, rows, and columns.

Let’s work on Dataframe Creation, Accessing its values , Subsetting and other functions in the upcoming posts.

Related Posts

Using [] Brackets in Python

We Will Work on this Example in Google Colab, As we have seen Accessing Python through Google Colab in my previous Posts. (Accessing Python Through Google Colab: – Sri Tech Studio) I have assigned The Range of values from 1 to 5 in Variable x, printed the Variable x and…

Creating Lists in python

Assigned 3,45,50,100 Values in Variable Named data and Print the data and Check the datatype of the data variable, The data type is shown as List. As We have also Printed Different Datatype Values in Variable data1; List is a heterogeneous data type so it will allow us to print…

Lists in Python:

Lists are just like dynamic sized arrays, declared in other languages (vector in C++ and Array in C & Java). Lists need not be homogeneous always which makes it a most powerful tool in Python. A single list may contain Datatypes like Integers, Strings, as well as Objects. Lists are mutable, and…

IF Statement in Python:

There comes a situation in real life when we need to make some decisions and based on these decisions, we decide what should we do next. Similar situations arise in programming also where we need to make some decisions and based on these decisions, we will execute the next block…

For loop in python

For loops are used for sequential traversal. For example: traversing a list or string or array etc. The for loop in Python is used to iterate over a sequence (list, tuple, string) or other iterable objects. Iterating over a sequence is called traversal. Let’s quickly work on few examples: Here…

Working with While Loop in Python

In Python, While Loops is used to execute a block of statements repeatedly until a given condition is satisfied. And when the condition becomes false, the line immediately after the loop in the program is executed. While loop falls under the category of indefinite iteration. Indefinite iteration means that the number of times…

Markdown cell in Jupyter Notebook

Jupyter Notebook(formerly IPython Notebook) is a web-based interactive computational environment for creating Jupyter notebook documents. Markdown is a light weight and popular Markup language which is a writing standard for data scientists and analysts. It is often converted into the corresponding HTML by which the Markdown processor allows it to…

Data Types in python:

Data types are the classification or categorization of data items. It represents the kind of value that tells what operations can be performed on a particular data. Since everything is an object in Python programming, data types are classes and variables are instance (object) of these classes. The variable in…

Variables in Python:

Variables are nothing but reserved memory locations to store values. This means that when you create a variable you reserve some space in memory. Based on the data type of a variable, the interpreter allocates memory and decides what can be stored in the reserved memory. Therefore, by assigning different…

Get Started with Python Syntax

Python Indentation: The indentation in Python is very important. Indentation refers to the spaces at the beginning of a code line. Where in other programming languages the indentation in code is for readability only, the indentation in Python is very important. Python uses indentation to indicate a block of code. Let’s quickly look into few examples how Python indentation…