Preface

I joined Kerala Agricultural University in 2019, and from that very first year, my days were divided between teaching undergraduate courses in Agriculture and travelling across the country to train teachers and scientists at State Agricultural Universities and ICAR institutions. It did not take long for a pattern to emerge, one that troubled me deeply. Researcher after researcher, brilliant in their own fields of agriculture, animal science, horticulture, and beyond, were struggling with something that should not have stood between them and their science: a basic understanding of statistical methodology. Powerful open-source tools like R existed, but the learning curve was punishingly steep for students and scientists whose training had never included programming. I kept asking myself why something so essential had to be so inaccessible.

That question would not leave me alone, and in 2020 it led me to build GRAPES (General R based Analysis Platform Empowered by Statistics), an R Shiny–based analysis platform designed so that anyone, regardless of their coding background, could run sound statistical analysis with confidence. What began as an attempt to solve a problem I kept encountering in training rooms was embraced far beyond anything I had imagined, growing to serve over two lakh users and finding its way into more than 400 published citations. A little later, we created a student startup, Statoberry, as they built on that foundation to create RAISINS (R & AI Solutions for Inferential Statistics), a far more advanced, AI-powered cloud computing platform for statistical analysis.

And yet, something kept nagging at me even as these tools found their audience. A platform can help someone run an analysis, but it cannot, by itself, teach someone to think statistically. I searched for a book I could recommend, one that a person with no statistical background could pick up and genuinely understand, and I searched for one written specifically for undergraduates in agriculture and allied sciences. I never quite found it. The books available seemed to fall into two camps: some were so simplified that they skipped over the core concepts entirely, and others were so dense and formal that they were impossible to approach without a mathematics background few agricultural students have. Somewhere between those two extremes, an entire generation of students was falling through the cracks. That realization is what convinced me, and the colleagues who would become my co-authors, that we needed to write the book ourselves.

This book is our answer to that gap. It has been written with undergraduate students in mind, focusing on the basics of statistics and their direct applications in agricultural research. Each chapter is designed to simplify complex concepts, making them clear, relatable, and easy to understand. While the primary audience is undergraduate students, this book can also serve as a helpful resource for anyone looking to brush up on the fundamentals of statistics.

The journey of writing this book has been greatly enriched by the feedback and insights of the students at the College of Agriculture, Vellayani. For two years, an earlier version of this book was made available on MeLON (Module for eLearning and Online Notes), our college’s online platform. The students, with their thoughtful suggestions and sharp observations, have helped refine the content and shape it into what it is today. Their enthusiasm and curiosity have been a constant source of inspiration throughout this process.

Work on this book, in its present form, began in 2024. What I imagined would take a matter of months stretched, for various reasons, into two years of early mornings, late nights, and weekends borrowed from everything and everyone else in my life. I owe my deepest gratitude to my family, who quietly gave up so much of the time that rightfully belonged to them so that this book could exist. No acknowledgment I write here will ever fully repay that. I am equally grateful to my friends and colleagues, whose encouragement and support carried me through the moments when finishing this felt very far away.

I would also like to express my heartfelt gratitude to my co-authors, Dr. Manju Mary Paul, Dr. Adarsh V. S., and Mohammed Hisham M., whose expertise, commitment, and contributions have been invaluable in bringing this book to life. Their collaboration and dedication have greatly enhanced the quality and depth of this work.

A special thanks to Jithin Chandran, Gaatha Prasad, Anjana Biwas T., and Varsha H. for their valuable suggestions and minor corrections. They were postgraduate students in Agricultural Statistics at the time of writing this book, and their support has significantly increased the quality of this work.

I hope this textbook becomes a guiding light for students and researchers alike, helping them build a solid foundation in statistics while inspiring confidence in their ability to use these tools effectively. If this book makes statistics less intimidating and more approachable for even one reader, I will consider my efforts worthwhile.

This book was finally completed on 26 September 2026, my 37th birthday, a coincidence I did not plan but one I have come to treasure. It feels fitting to mark the beginning of another year of my own life alongside the completion of something I hope will mark the beginning of many students’ journeys into statistics.

With deep gratitude to my family, students, colleagues, and everyone who supported this work, I present this book as a tool to empower the next generation of agricultural scientists and researchers.

S/Lt (Dr.) Pratheesh P. Gopinath
Head
Department of Agricultural Statistics
College of Agriculture, Vellayani
26 September 2026