December 28, 2016 How to install R and RStudio

How to install R and RStudio

R is popular tool used in Machine Learning,data analytics,business analytics,statistical analysis,bioinformatics. To use R efficiently we need another tool which is called as integrated development environment (IDE). RStudio is an integrated development environment (IDE) for R. For using R,we need following 1.Install R 2.Install R-Studio 3.Install R-Packages Mac Users To Install R Go to www.r-project.org […]

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December 28, 2016 Who knows about Machine learning ??

Applications of Machine Learning

Machine learning and Artificial Intelligence is future of our world. Machine learning enables us to crunch big data (Talking of Petabytes of data ???.. Yes). Machine learning is the subfield of computer science that “gives computers the ability to learn without being explicitly programmed” (Arthur Samuel, 1959). You can think of your brain.How does that […]

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December 28, 2016 deeplearning

Neural Networks For Machine Learning in R

Neural networks almost mimics the working of human brain.The neurons are connected by axons in human brain.Same way we have neural units in neural networks. Neural networks consist of multiple layers.And each layer has neural units .One is input layer and one is output layer.In between them we have more layers also called as hidden […]

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December 28, 2016 Tools for  Data Visualization

Tools for Data Visualization

Let’s begin learning about what are the important tools which are used for Data Visualization by Data Scientist,Business Analyst,Data Analyst and so on Data visualization involves study of the visual representation of data. The goal of data visualization is to communicate information clearly and efficiently via statistical plots like pie chart,histogram,barplots,scatterplot,heatmap and so on. Data […]

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December 28, 2016 Decision Tree for Data Analytics in R

Decision Tree for Data Analytics in R

A decision tree is a model that uses a tree-like graph for finding outcome decisions with probabilities. Decision tree learning is a supervised classification learning. Its a popular tool in machine learning. A typical decision tree looks like below In above figure, 0 and 1 at leaf nodes represent outcome variable classes.Its a binary classification.Names […]

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December 28, 2016 What is Data Analytics???

What is Data Analytics???

Discovery, interpretation, and communication of meaningful patterns in data is part of data analytics.Analytics is compulsory for business for describing, predicting, and improving business performance. It involves many fields like Statistics, Mathematics,computer science and operations research and so on. Statistician John Tukey defined data analysis in 1961 as: “Procedures for analyzing data, techniques for interpreting […]

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December 28, 2016 What is Exploratory Data Analysis

What is Exploratory Data Analysis

Let’s begin learning about “What is Exploratory Data Analysis” and about “what techniques are used in Exploratory Data Analysis” Exploratory Data Analysis (EDA) helps in finding hidden information by displaying data in generally two or three dimentions. It is an approach to analyze data sets to summarize their main characteristics, often with visual methods. There […]

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December 28, 2016 Use of apply,lapply and sapply functions in R

Use of apply,lapply and sapply functions in R

This is for those who know about dataframes in R.If you want to do something either rowwise or column wise in dataset(or dataframe) then you can use functions like apply,lapply and sapply. Say We are given a dataset or dataframe which has three columns like age,weight and height and let’s say you have 1000 rows […]

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