The operation integer division is also called floor division, which is equivalent to // in python. And it is a binary operation nothing but an element-wise division operation that returns a new value.In the pandas series class, there is a method called floordiv() which performs the element-wise integer division operation between a series object and a scalar. And this method can also be used to perform floor division between two series objects.The output of this method is a new series with the result of the operation. And it has 3 parameters, which are fill_value, other, and level. The other parameter ... Read More

The floordiv() method in the pandas series constructor is used to perform integer division of two series objects (an element-wise division operation) and the Floor Division operation is also called Integer Division, which is equivalent to // in python. The method supports the substitution of missing values in any of the inputs.The method returns a series with resultant values, and the method has 3 parameters, which are fill_value, other, and level. The other parameter is nothing but the 2nd input object either series or a scalar.The fill_value parameter is used to replace a specific value in the place of missing ... Read More

The pandas series.last() method is used to return final periods based on the date offset. By applying this series.last() method we can get the final periods of the time series object. The last method is very similar to the pandas series.first() method, here we can get the final periods instead of the initial periods.The series.last() method has a parameter called offset which is used to mention the length of the offset data to select the rows within the given limit.The last() method will return a now Series object with resultant rows and it will raise the TypeError if the index ... Read More

The parallel array is also called the structure array.Definition − A parallel array can be defined as multiple arrays in which the ith elements are closely related, and together, they constitute an entity. An array is a fundamental feature in the C++ language. Making parallel arrays helps us in comparing two or more arrays.For instance, first_name = ['John', 'Dexter', 'Fredd', 'Hank', 'james'] last_name = ['Jocab', 'Jonas', 'smith', 'lee', 'banner'] height = [160, 148, 231, 153, 162]Approach for Making a Parallel ArraySearching and sorting are some of the essential features required to form a parallel array.SearchingSearching is based on specific values ... Read More

The pandas series.last_valid_index() method is used to get the index of the last valid element from the given series object. This means the last_valid_index() method returns the index of the last non_null element of the series.It will return a single scalar based on the type of series index, and it will return None if the given series has all null/NA values or if it is empty. The method doesn’t have any parameters.Example 1Let’s create a pandas series object and retrieve the last valid index by using the last_valid_index() method.# importing packages import pandas as pd import numpy as np ... Read More

The pandas series.first_valid_index() method is used to get the index of the first valid data. This means the first_valid_index() method returns the index of the first non_null element of the series.It will return a single scalar based on the type of series index, and it will return None if the given series has all null/NA values or if it is empty. The first_valid_index() method doesn’t take any parameter.Example 1Let’s take a series object and try to retrieve the first valid index.# importing packages import pandas as pd import numpy as np # create a series s = pd.Series([None, np.nan, ... Read More

In this tutorial, we need to solve palindrome substring queries of the given string. Solving palindrome substring queries is far more complex than solving regular queries in C++. It requires a far more complex code and logic.In this tutorial, we are provided string str and Q number of substring[L...R] queries, each with two values L and R. we aim to write a program that will solve Queries to determine whether or not substring[L...R] is a palindrome. We must decide whether or not the substring formed within the range L to R is a palindrome to solve each query. For example ... Read More

The pandas series.first() method is supposed to return initial periods based on the dates. By applying this method we can get the initial periods of the time series data based on a date offset.It has a parameter called offset and also we can mention the length of the offset data to select the rows within the limit.The first() method will return a now Series object with resultant rows and it will raise the TypeError if the index of the input series object doesn’t have the DatetimeIndex.Example 1In this following example, a series “s” is created by using the pandas DateTime ... Read More

By using the regex parameter we can apply the regular expression to the filter() method and this helps to retrieve the rows of the series object. The basic working of series.filter() method in pandas series constructor is used to subset the rows of a series object based on the index labels.The parameter regex is used to define a search pattern (regular expression) that is used to retrieve the resultant rows.Example 1In this following example, we have created a series object using a list of integers and the index labels are created by using the pandas data range function.# importing pandas ... Read More

The series.filter() method in the pandas series constructor is used to subset the rows of a series object based on the index labels. The filter method does not work for the content of the series object, it is only applied to the index labels of the series object.The method won’t raise an error if the specified label does not match to the series index labels.The parameters for the filter() method are items, like, regex, and axis. The items parameter takes a list-like object to access the set of rows from the given series object. The regex parameter is used to ... Read More