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DataFrame is used to represent the data in two-dimensional data table format. Same as data tables, pandas DataFrames also have rows and columns and each column and rows are represented with labels.By using the python dictionary we can create our own pandas DateFrame, here keys of the dictionary will become the column labels, and values will be the row data.Here we will create a DataFrame using a python dictionary, Let’s see the below example.Example# importing the pandas package import pandas as pd data = {"int's":[1, 2, 3, 4], "float's":[2.4, 6.67, 8.09, 4.3]} # creating DataFrame df = pd.DataFrame(data) ... Read More

The pandas DataFrame constructor will create a pandas DataFrame object using a python list of tuples. We need to send this list of tuples as a parameter to the pandas.DataFrame() function.The Pandas DataFrame object will store the data in a tabular format, Here the tuple element of the list object will become the row of the resultant DataFrame.Example# importing the pandas package import pandas as pd # creating a list of tuples list_of_tuples = [(11, 22, 33), (10, 20, 30), (101, 202, 303)] # creating DataFrame df = pd.DataFrame(list_of_tuples, columns= ['A', 'B', 'C']) # displaying resultant DataFrame ... Read More

In pandas Series functionalities we have a function called add_prefix that is used to add a string prefix to the labels. Particularly in pandas series the row labels will be prefixed with string.The add_prefix method will return a new series object with prefixed labels. It will add the given string before the row labels of the series.Exampleimport pandas as pd series = pd.Series(range(1, 10, 2)) print(series) # add Index_ prefix to the series labels result = series.add_prefix('Index_') print("Prefixed Series object with a string: ", result)ExplanationIn this following example, we have created a pandas series using python range ... Read More

The pandas DataFrame can be created by using the list of lists, to do this we need to pass a python list of lists as a parameter to the pandas.DataFrame() function.Pandas DataFrame will represent the data in a tabular format, like rows and columns. If we create a pandas DataFrame using a list of lists, the inner list will be transformed as a row in the resulting list.Example# importing the pandas package import pandas as pd # creating a nested list nested_list = [[1, 2, 3], [10, 20, 30], [100, 200, 300]] # creating DataFrame df = pd.DataFrame(nested_list, columns= ... Read More

DataFrame is a two-dimensional pandas data structure, and it has heterogeneous tabular data with corresponding labels(Rows and Columns).In general pandas, DataFrame is used to deal with real-time tabular data such as CSV files, SQL Database, and Excel files. If you want to create a DataFrame there are many ways like: by using a list, Numpy array, or a dictionary.We can create a DataFrame by using a simple list.Exampleimport pandas as pd # importing the pandas package Li = [100, 200, 300, 400, 500] # Assigning the value to list(Li) df = pd.DataFrame(Li) # Creating the DataFrame print(df) ... Read More

The count method in the pandas series will return an integer value, that value represents the total number of elements present in the series object. It counts only the valid element and neglects the invalid elements from series data.Invalid elements are nothing but missing values like Nan, Null, and None. The count method won’t count missing values as an element, it will neglect the missing values and count the remaining values.Example# importing pandas packages import pandas as pd d = {'a':'A', 'c':"C", 'd':'D', 'e':'E'} #creating a series with null data s_obj = pd.Series(d, index=list('abcdefg')) print(s_obj) # ... Read More

The tail method in pandas series object is used to retrieve bottom elements from a series. And this tail method takes an integer as a parameter which is represented by variable n.Based on that n value the pandas series tail method will return a series object with n number of bottom elements from the actual series object.Let’s take an example and see how this tail method will work on our pandas series object.Example# importing required packages import pandas as pd # creating pandas Series object series = pd.Series(list(range(10, 100, 4))) print(series) print('Result from tail() method:') # ... Read More

Indexing in pandas Series is used to access elements from a series, in the same way, we can also get a set of values from a series object using the slicing technique. Nothing but we can retrieve the subset from a pandas Series object. This process is similar to the NumPy array slicing.Retrieving some set of elements can be achieved by defining the start and endpoint index values of a series.Example# importing required packages import pandas as pd import numpy as np # creating pandas Series object series = pd.Series(np.random.rand(10)) print(series) print('Retrieve first 3 elements') # accessing ... Read More

The data present in the pandas Series object has indexing labels, those index labels are used to access or retrieve elements. Each index value addresses an element in series.Indexes are basically represented in two types: positional indexing and labeled indexing. Positional indexing is nothing but integer values starting from 0 to n-1 (n number of elements present in series). Whereas labeled indexing is user-defined labels that can be anything like integers, objects, date times and etc., Example# importing required packages import pandas as pd import numpy as np # creating pandas Series object series = pd.Series(np.random.rand(10)) print(series) print('Accessing ... Read More

There are several ways to get the number of elements present in a pandas Series object. And the class pandas series constructor provides you several attributes and methods to determine the features of the Series object.In the following example, we will learn about the size and shape attributes of the pandas Series object. The size attribute will return an integer value representing the count of the total elements present in a Series object, which works similarly to the python length function.The shape attribute will return a tuple with two elements in it, those two elements are integer values representing the ... Read More