Empowering Computer and Statistics
Throughout history, toys and entertainment have played a vital role in human cognitive, social, and physical development. Toys have not only been tools for amusement but also instruments for education, creativity, and life skills enhancement. Over time, toys have evolved from simple natural objects to today’s advanced digital technologies. This article explores the transformation of […]
In most cases, there are complex and specific algorithms for abnormal or anomaly detection that have been implemented through various software in statistical or data analysis. However, in this article from the Arman Computer magazine, we aim to discuss the application of sorting and identifying abnormal observations, which, in addition to being simple, is also […]
The correlation coefficient or more precisely, the Pearson correlation coefficient, is a bivariate statistical descriptive statistics that examines the linear dependency between two vectors of observations. Given the range [1,-1] that the value of the Pearson correlation coefficient can have, it is very close to the value of trigonometric functions, especially the cosine function. Therefore, […]
In other articles from Arman Computer Magazine, we have examined how to calculate the average and weighted mean. But in this text, we want to discover the average or mean formula and learn how to derive its formula. I try to mention the formula syntax less, but sometimes it is necessary to use the syntax […]
The science of mathematics develops from the mental aspect in the abstract part of brain function. In part of the development period of a human, the mind that has the ability to understand abstraction and imagine concepts that do not have a physical presence, emerges and is completed and forms intellectual maturity. Concepts like infinity […]
“Coefficient of Variation” (CV) is suitable for comparing the dispersion (Variation) of two groups of data collected with different measurement units. In this statistical index, the ratio of dispersion to a central criterion is measured. In fact, this index shows how much the standard deviation of the values changes per unit of change in the […]
Descriptive statistics indices, such as Central Tendency indices or dispersion measures, are used to identify the statistical population. But using each one alone may not have a good result. Simultaneous attention to the criteria of concentration and dispersion helps the statistical population to be better known and its behavior can be compared and analyzed. they […]
Here at Armancomputer -an online magazine (Blog) we concentrate on computing software and applications. One of the most popular software applications in data analysis is Microsoft Excel, and its new functions are more challenging. In this post, we want to introduce a new logical function called Excel switch function. If you have many levels as […]
In the previous post entitled Random Numbers, we mentioned how to generate random numbers from the normal distribution in the R programming language showing statistical distribution and its density plot. In this post, with the help of the Shiny library in R programming language, we will get the desired distribution type and parameter from the […]
I attended a meeting today about startups and their challenges. In the middle of the meeting, there was a game in which each group (every 3 people make a group) had to solve a problem. But what was that problem? it was related to the Meeting Time, Scheduling. Our challenge was planning a time to […]
