Univariate Outlier Detection Based On Normal Distribution

Detection of Univariate Outlier Based On Normal DistributionData involving only one attribute or variable are called univariate data. For simplicity, we often choose to assume that data are generated from a normal distribution. We can then learn the parameters of the normal...

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Mahalanobis Distance using R code

Mahalanobis distance is one of the standardized distance measure in statistics. It is a unit less distance measure introduced by P. C. Mahalanobis in 1936. Here i have using R code and one example for multivariate data sets to find the Mahalanobis distance. Mahalanobis Distance Formula: ${{D}^{2}}=(x-\mu {)}'\sum{^{-1}}(x-\mu )$ where, x - Number...

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Research Methodology Paper-1 Syllabus for Statistics

Unit-I Concept of Research – Importance of Research – Ethics in Research – Selection of Research Topics and Problems – Research in Statistics – Literature Survey and its Importance Unit-II Preparation of Assignments, Theses and reports – Significance of Publications in Research – Journals in Statistics Unit-III Introduction to stochastic processes...

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K-means clustering

K-means Is one of the simplest unsupervised learning algorithms that solve the well known clustering problem. The k-means algorithm takes the inputs parameter, k, and partitions a set of n objects into k cluster so that the resulting intracluster similarity is high but the intercluster similarity is low. Cluster similarity is measured in regard to...

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Research Methodology - Objectives and Motivation of research

Research is common parlance refers to a research for knowledge. Once can also define research as a scientific and systematic search for pertinent information on a specific topic. In fact, research is an art of scientific investigation. The advanced Learner’s Dictionary of current English lays down the meaning of research as a “careful investigation...

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Artificial Neural Networks

Normal 0 false false false MicrosoftInternetExplorer4 What are Neural Networks?  Models of the brain and nervous system Highly parallel                ...

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R code for Wilcoxon rank sum test

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