The greatest value of a picture is when it forces us to notice what we never expected to see. — John W. Tukey. Exploratory Data Analysis.Why do we use exploratory graphs in data analysis?Understand data propertiesFind patterns in dataSuggest mod...

This post analyzes sentiment of people towards the 2016 presidential candidates post the First Presidential Debate using Tweets. We focus on Tweets containing the names of Hillary Clinton and Donald Trump.Let’s load the required packageslibrary(twitteR)library(ROAuth)require(RCurl)library(stringr)library(tm)library(plyr)library(tm)library(...

It is not the beauty of a building you should look at; it is the construction of the foundation that will stand the test of time. ~ David Allan CoeThis week we focus on getting data from MYSQL, HDF5, API and the WEB.Extracting Data from MYSQLMysql is one of the ...

Without a solid foundation, you’ll have trouble creating anything of value. ~ Erika OppenheimerAlthough building models to predict the future outcome is the ultimate goal of any study, getting the data and preparing it for analysis is the foundation based on which the models are built. Although often neglected, this ...