Programming Articles - Page 355 of 3363

Maps are an important data structure in Golang that stores key-value pairs. Sometimes it is required to copy one map to another map. Copying a map in Golang can be done using different approaches. In this article, we will discuss some of the methods to copy a map to another map in Golang. Method 1: Using a For Loop One way to copy a map to another map is to use a for loop. Example Here is an example − package main import "fmt" func main() { map1 := map[string]int{"a": 1, "b": 2, "c": 3} ... Read More

In Go, we can convert a string to a float type using the strconv package. The strconv package provides the ParseFloat function to convert a string to a float type. This function takes three arguments - the string to be converted, the bit size of the float type, and the precision of the float type. In this article, we will discuss how to convert a string to a float type in Go. Syntax The syntax of the ParseFloat function is as follows − func ParseFloat(s string, bitSize int) (float64, error) The ParseFloat function takes two arguments - the string ... Read More

In Golang, it is easy to convert one data type to another using type conversion. In this tutorial, we will explore how to convert an integer to a float data type. Converting Int to Float In Golang, converting an integer to a float is a straightforward process. You can use the float64() function to convert an integer to a float data type. Example Here is an example − package main import "fmt" func main() { i := 5 f := float64(i) fmt.Println("The integer value is: ", i) ... Read More

With the frequent change in technology to present the content on the web it is often needed to redesign and restructure the content of the web pages or websites. Selenium with Python is a good combination that is helpful to extract the desired content from web pages. Selenium is a free open-source automated tool that is used for evaluating web applications across multiple platforms. Selenium Test Scripts can be written in a variety of computer languages such as Java, C#, Python, NodeJS, PHP, Perl, etc. In this Python Selenium article, using two different examples, the ways to locate elements of ... Read More

In this article, we will understand the concept of nested Lsit in Python and how to iterate through a nested list in Python language, Sometimes, the task is to go through each element of a list or to find the elements in a list or to use the information given in a list. In all these cases, one has to iterate through a list. The list can be made up of a single type of elements or multiple types of elements can be used in a list. The three different examples would be used to represent the different ways ... Read More

Sometimes, the task is to invert a boolean array. This is often required if the files contain a column with true or false values and the need is to use the column values in the inverted manner. For example, if a CSV file contains the data column as Covid Negative status showing True for covid –ve patients and the need is to create a column of covid+ve status. In such cases, the array inversion for the boolean values is required. In this Python article, using four different examples, the different ways to invert a Boolean array with or without using ... Read More

Sometimes, the task is to analyze a dataset and use charts or plots for data visualization. Plotly is a nice open-source graphing library that can be used with Python and is used for making a variety of plots and charts quickly and easily. In this article, using two different examples, this Python library called Plotly is used with Python code to make the scatter plots. In the first example, the Python installed in the computer system is used to run a Python program that is written for making a scatter plot. In another example, using the Google Colab the ... Read More

Paging is a memory management process related the operating systems. It stores or retrieve some process data from the secondary data storage into the primary data storage or memory by using the page segement. The paging process happens when the process encounters any fault in a page and we can not use a new free page to satisfy the allocation process here. The LRU process generates the particular need of a replacement algorithm. It decides which page needs to be replace when a process produce a new page. Let us take an example – Input taken for the process − ... Read More

The Least Frequently Use aka LFU is a concept of page memory management, can also be used as a replacement algorithm. This process take a lead we the particular page needs a replacement when a new page is on the way by the process. LFU is one of the page replacement policy where an user can replace the least frequency of a particular operation page. If the page frequency is same in a process, then it will come first on the replacement list. Here we will take a page sequence of an array of pages denoted as pages[], whose length ... Read More

It is a well-known phenomenon that if we take the average of many observations of a random variable, the distribution converges to a normal distribution as the number of observations is increased. For example, if we throw two dice and calculate the sum of the random values that show on these dice each time, it will show a bell-shaped curve as the values that are measured will show the normal tendency. It is also observed that it will not show a perfect bell-shaped curve if it is done only 50 times, and it will show a good bell-shaped curve if ... Read More