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In this article, we will explore how to calculate variance in MATLAB. In mathematics, variance is a statistical tool used to measure the degree of dispersion of a set of data points around its average value. It is widely used to quantify the diversity or variability of a set of data points. We can compute variance of a data set by using the following formula: $\mathrm{Var=\frac{\displaystyle\sum\limits_{i=1}^n (x_i −\bar{x})^2}{n}}$ Where, xi is the individual data points, is the average of data set, and n is the total number of data points in the set. The following sections of this articles ... Read More
In this article, we will learn ow to calculate the impulse response of a system in MATLAB. Impulse response is an elementary concept used in analyzing and understanding the behavior of systems for an impulse input. It is mainly used to analyze the linear time invariant systems like digital filters, electronic circuits, signal processing systems, control systems, and more. Impulse response of a system can be defined as follows: The response of a system when an impulse input signal is applied to it, is called the impulse response. It is denoted as h(t) for continuous time systems and h[n] for ... Read More
Chunked sum also known as partial sum or rolling sum, which is a process of calculating the sum of elements in a sequence such as list, array, or any iterable, in smaller chunks or subsets rather than calculating the sum of the entire sequence at once. Each chunk represents a group of consecutive elements from the sequence, and the sum is calculated for each chunk individually. For example, consider the sequence [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], and let's calculate the chunked sum with a chunk size of 3. Chunk 1: [1, 2, 3] → ... Read More
In mathematics, a bijection refers to a function that establishes a one-to-one correspondence between two sets. It means that each element in one set has a unique and distinct counterpart in the other set, and vice versa. In other words, a bijection ensures that there are no duplicates or missing elements in the mapping. In the view of programming, specifically Python, checking for a bijection often involves validating whether a one-to-one mapping exists between elements of two sequences or collections. For example, given two lists, A and B, we can check if there is a bijection between their elements by ... Read More
Generally, a suffix refers to an affix or a group of letters that is added to the end of a word to modify its meaning or to form a new word. Suffixes are used in linguistics and grammar to create different word forms, such as plurals, verb tenses, comparatives, and more. Suffixes can change the meaning or function of a word in various ways. For example, the suffix "-s" added to the word "cat" forms the plural "cats, " indicating multiple cats. Similarly, the suffix "-ed" added to the verb "walk" creates the past tense "walked, " indicating an action ... Read More
A Dictionary is one of the data structures available in python which stores the data in the format of key and value pairs. It is mutable i.e., once the data is defined in the dictionary we can make the modifications on the data. It is an unordered collection of elements. The key in the dictionary is unique and the values can be duplicates. The key and value are separated by using the colon (:). On the other hand, a tuple is an ordered collection of elements, enclosed in parentheses (), separated by commas. It is immutable, which means the values ... Read More
In this article, we will learn to calculate standard deviation in MATLAB. Standard deviation is a mathematical operation that gives the measure of variation in a set of data points. The standard deviation is used to study the dispersion of data around their average value. If a set of data points has a low standard deviation, it indicates that the data points tend to nearer to the average value. Whereas, the high standard deviation specifies a large dispersion of data points out from their average value. In MATLAB, we can calculate the standard deviation by using a built−in function named, ... Read More
Python NetworkX is a popular open-source Python library used for the creation, manipulation, and analysis of complex networks or graphs. It provides a wide range of tools, algorithms, and functions to work with graphs, making it a valuable resource for network analysis and research. Python NetworkX allows us to represent and work with different types of graphs, such as directed graphs, undirected graphs, multigraphs (graphs with multiple edges between nodes), and weighted graphs (graphs with edge weights). It also provides a simple and intuitive interface for creating, adding nodes and edges, and performing various operations on graphs. Installation and importing ... Read More
Generally, a string is an immutable data structure which is used to store the data in the string format within the single quotes or within the double quotes. It is immutable which means once the string is created the data in the string can’t be changed but can perform various operations on strings to manipulate the data A substring is a contiguous sequence of characters within a larger string. It is a smaller part of a string that can be extracted or searched within the original string. For example, let’s consider the string "Hello, World!" as the original string and ... Read More
Seaborn's 'axes_style()' function allows us to customize the style of plots by modifying various parameters. It returns a dictionary of parameters that control the appearance of the plot elements, such as colors, fonts, gridlines, and more. To view these parameters, we can print the dictionary returned by 'axes_style()'. Importing Required Libraries Before we begin, let's import the necessary libraries. We need to import Seaborn by using the following command. import seaborn as sns Viewing Parameters To view the available parameters in 'axes_style()', we can simply print the dictionary returned by the function. Example When we run the below code, ... Read More