R on Harshvardhan

CK Cafe: Using Association Rules to Find Basket of Goods

Mon, 21 Nov 2022 11:30:00 +0000

In this lab session, I share how to use apriori algorithm for association mining. The goal is to find useful causal and association rules which can help in designing promotions for the company. Plus, you get to see what’s served at an Indian cafe.

A Gentle Introduction to using Support Vector Machines for Classification

Sun, 02 Oct 2022 11:30:00 +0000

Support vector machines (SVM) are remarkable for the unification of geometric theory, elegant mathematics, theoretical guarantees with strong practical use cases. In this blog post, I demonstrate certain properties of SVM and how to use them with caret package in R.

Up and Running with R Markdown

Wed, 24 Aug 2022 11:30:00 +0000

Introduction to R Markdown for MS (Business Analytics) Class of Fall 2022

Using GitHub with RStudio

Wed, 24 Aug 2022 11:30:00 +0000

Introduction to using Git & GitHub with RStudio for MS (Business Analytics) Class of Fall 2022

Next — Today I learnt About R

Sat, 18 Jun 2022 00:00:00 +0000

What is Next?

A short and sweet curated collection of R-related works. Five stories. Four packages. Three jargons. Two tweets. One Meme.

You can subscribe by providing your details here. Promise, no spams.

If you are unsure, here are some editions that my readers loved.

Street Maps (of Some Cities)

Sat, 28 May 2022 00:00:00 +0000

Over the last few days, I dabbled with maps in R. Two days ago, I made a map of all the cities I’ve visited. Today, I thought to make street maps of some of them (and other cool cities).

Joint Probability-based Dissimilarity Measure for Discrete Variables

Tue, 10 May 2022 00:00:00 +0000

A Simple Method to Calculate Distance between Discrete Variable

Billionaires and Taxes

Thu, 14 Apr 2022 00:00:00 +0000

How much do the super rich really pay? Until now, the answer was unknown — thanks to privacy laws. Recently, tax returns of the super rich was leaked to ProPublica. I thought of exploring the billionaires and their tax rates.

Creating your own short URLs with blogdown

Thu, 24 Mar 2022 00:00:00 +0000

Here’s how to make your short URLs using Hugo + Blogdown

garlic: Some R Functions I Use Rather Frequently

Sat, 05 Mar 2022 00:00:00 +0000

My personal R package for custom functions

Number of PhDs by Field

Sun, 20 Feb 2022 00:00:00 +0000

An Incomplete Data Exploration

Notes on R

Thu, 03 Feb 2022 00:00:00 +0000

Functions et al

Basics of Text Mining in R

Thu, 27 Jan 2022 00:00:00 +0000

Thinking of Text as List of Words

Notes on Github

Mon, 24 Jan 2022 00:00:00 +0000

Tricks of trade I learnt along the way

I Web, Therefore I Exist

Fri, 14 Jan 2022 12:00:00 +0000

Slides, recorded lecture and additional resources around my talk on how to create and control your digital identity.

IndiaPIN: R Data Package

Tue, 11 Jan 2022 00:00:00 +0000

R Package for All India PIN Codes Directory with Latitude and Longitude Details (Updated: December 2021)

How fast is M1?

Mon, 08 Nov 2021 00:00:00 +0000

Comparing Apple M1 processor with Other Systems in R

Next — Today I Learnt About R

Wed, 06 Oct 2021 00:00:00 +0000

My Newsletter on R and Data Science

Supervised Learning Using Baysian Decision Rule

Tue, 07 Sep 2021 00:00:00 +0000

Python Functions for Bayesian Learning (COSC 522 Project)

Is COVID-19 Data tampered?

Mon, 15 Feb 2021 00:00:00 +0000

Is there any evidence of tampering or manipulation in COVID-19 daily cases reported by countries? Using Benford analysis in R, I try to reach at some conclusion.

Demonstrating Shiny Apps

Sat, 13 Feb 2021 10:00:00 +0000

Guest lecture for PhD students on R Shiny (2020 and 2021)

Forecasting Malaria Vaccine Demand

Thu, 24 Dec 2020 00:00:00 +0000

Summary of my research work on forecasting coverage for Malaria vaccines

Dynamic GP: Application to Malaria Vaccine Coverage Prediction

Sun, 20 Dec 2020 00:00:00 +0000

We applied a dynamic Gaussian process model to predict coverage for novel Malaria vaccines in 78 countries. Using publicly available WHO data on coverage of nine vaccines, we developed localised models for countries grouped using the human development index (HDI). We deployed convolutions of standard GP models with weights determined using singular value decomposition of time-series response matrix. 🔗 PDF

Sentiment Analysis of Tweets

Wed, 10 Jun 2020 00:00:00 +0000

Using rTweet package in R to analyse live tweets from Twitter

Exploring My Spotify Listening

Wed, 03 Jun 2020 00:00:00 +0000

I analyse my listening stats and patterns using R.

Statistical Modelling and Analysis of the Computer-Simulated Datasets

Thu, 31 Jan 2019 00:00:00 +0000

My first academic publication: a peer-reviewed book chapter on statistical modelling using Gaussian processes. We reviewed several GP models and correlation structures, and methods to handle numerical instabilities due to near-singular matrices. Finally, we reviewed several algorithms developed specifically for analysing big data obtained from computer simulators. 🔗 PDF