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Covariance and Correlation
Covariance and Correlation are very helpful in understanding the relationship between two continuous variables. Covariance tells whether both variables vary in the same direction (positive…
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Covariance vs Correlation
This article is about Covariance and Correlation : what are they and how are they related and how they differ from each other. Covariance and Correlation are the two statistical measures which tells…
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Covariance and Correlation Math and Python Code
There is always a confusion when you are pursuing Statistical concepts. Let us see Covariance and Correlation in detail in this article. First useful information you can gather from data is how two…
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Relationship Between Data - Covariance & Correlation
Here we are going to discuss how to quantify the relationship between observations. Finding this relationship could help you understand more on data. The methods discussed here will include…
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Covariance
Suppose I have a random variable X, which takes values of student’s heights in a class and another variable Y, which takes weights of students. Below is the example. So if I made n number of such…
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Covariance and Correlation Are Related But They Are Not the Same
Clarifying the confusion between these two statistical terms using stock market data. Practical and real-life examples using Python. Continue reading on Python in Plain English
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Covariance Calculation Using Python
Covariance is the joint variability of two random variables, i.e. if the value of a variable x_ii increases how the value of x_ij changes. If the value of x_ii gets larger with the value of x_ij…
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Getting the Basics of Correlation & Covariance
Correlation is one of the widely used statistical concepts. This blog post tries to answer what correlation is, why it is so helpful, what relationship correlation and covariance share and some of…
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Independence, Covariance and Correlation between two Random Variables
In this article, I’ll talk about independence, covariance, and correlation between two random variables.
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Covariance in R with the cov() Function
Introduction In the world of data analysis, understanding the relationship between variables is crucial. One powerful tool for measuring this relationship is the covariance. Today, we’ll explore the c...
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Covariance Vs Pearson Correlation Coefficient Vs Spearman’s Rank Correlation Coefficient
Covariance is one of the most used topic in data analysis or data pre processing. It is used to Quantify the relationship between features in a particular dataset. In simple words, it is used to…
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The Covariance and Correlation Clutter…
For the longest time, I remember being confused between these two devils — covariance and correlation. And the resemblance DID NOT help! :( So here I am, writing my first post and making an attempt…
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Variables and Correlation
A variable is something that varies, as opposed to a constant. For example, The current temperature is a value for the variable temperature 27, 30, 19, 29. As opposed to freezing temperature, which…
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Correlation vs covariance: it’s much simpler than it seems
What is correlation? How can we compute correlation between to continuous variables? And what are the differences with covariance? Clearly, two persons who understood what is correlation. Photo by Ji...
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Correlation in Statistics.
Correlation is a term that is a measure of the strength of a linear relationship between two quantitative variables (e.g., height, weight). Sometimes two or more events are interrelated, i.e., any…
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5 Things You Should Know About Covariance
What is covariance and covariance matrix and how to interpret it. Interpretation of the eigenvalues and eigenvectors of covariance matrices.
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Let us understand the correlation matrix and covariance matrix
Covariance and correlation are two significantly used terms in the field of statistics and probability theory. Most articles and reading material on probability and statistics presume a basic…
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Correlation
Correlation explains how two variables are related to each other. This is an important statistical tool for bivariable analysis in data science. Correlation does not mean causation of these two…
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Correlation Between Variables (part 1)
In this section, I want to show you how can you compute the correlation between two or more variables. For better compression, this section is divided as follows:
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Correlation Matrix
The correlation matrix is a matrix that shows the correlation between variables. it gives the correlation between all the possible pairs of values in a matrix format. We can use a correlation matrix…
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Understanding the Covariance Matrix
Linear algebra is one of the fundamentals of machine learning and is considered the ‘mathematics of data’. While I personally enjoy many aspects of linear algebra, some concepts are not easy to grasp…...
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Pearson’s Correlation
Pearson Correlation or Pearson Product Moment Correlation of (PPMC) or Bivariate correlation is the standard measure of correlation in statistics.
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XᵀX, Covariance, Correlation and Cosine matrices:
Ever been in a scenario where you needed to come up with pairwise covariance, correlation, or cosine matrices for data on the fly without the help of a function? Probably not. Even so, it’s worth…
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Intuitive Explanation of Correlation and Covariance Using Linear Algebra
Use simple Linear Algebra to understand the basic statistical concepts of Correlation and Covariance
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