JoaoMonteiro100 / data-analysis-xlsx

A Java program to format excel files, and an analysis of their data in R

Data Analysis

This repository consists of 2 complementary parts: a Java parser and an R analyser of the resulting excel file. It was done for a research within the scope of HealthTalks.

Java parser

It reads and merges two excel files into one, formatting it according to the specifications.

Instructions

Just run the file src/Parser.java.

Requirements

• Apache POI (XSSF) - download | guide

NOTE: This program only works for two specific .xlsx files, which are the result of two surveys in Google Forms (available here). The resulting file is another .xlsx file, formatted in a way that it is easier to analyse in R.

---

R analysis

It has alternative (shorter) header names for the data read from the excel file, as well as several graphs that use those variables.

Instructions

Open the file analysis.R and install all the necessary packages (comments in the first lines). Run all the other functions before INFO ANALYSIS to set the variables, and the ones afterwards to create the graphs.

NOTE: These instructions only work on the excel file created by src/Parser.java.