Body Mass Index

Jack
March 2017

Introduction

This document describes the BMI application which calculates the Body Mass Index - BMI based on the following.

Input

The input variables for the calculation are:

  • Weight in Kilograms
  • Height in Centimeters

Formula

The BMI is calculated based on the formula Height divided by Weight squared, or:

  • Heigth / Weight ^ 2

Results

Based on the input, the following results are determined:

BMI value

  • The value of the Body Mass Index is calculated
  • The category of the Body Mass Index is determined

BMI Category

The category for the BMI is determined as one of the following:

  • Underweight
  • Normal (healthy weight)
  • Overweight
  • Obese

Example calculation

Here is an example of how the BMI is calculated:

weight <- 78
height <- 1.78
bmi <- (weight / (height ^ 2))
bmi

[1] 24.6181

References

This BMI Rpres presentation is published here on RPubs:

The BMI application is published here on ShinyApps.io:

The BMI source code can be found here on Github: