R Cheatsheet: Reading XLSX files

#Use the xlsx library

#By default it is not available in base R so we must install package

install.packages("xlsx")

library(xlsx)

#If we use the read.xlsx with only the filename parameter it will cause an error, because we must provide the sheetindex and point out wheter the sheet contains headers for each column

readexcelfile<-function(){
 library(xlsx)
 localcopy<-"./data/cameras.xlsx"
 cameraXlsx<-read.xlsx(localcopy)
 head(cameraXlsx)
}

#Correct use of read.xlsx

readexcelfile<-function(){
library(xlsx)
 localcopy<-"./data/cameras.xlsx"
 cameraXlsx<-read.xlsx(localcopy, sheetIndex = 1, header = TRUE)
 head(cameraXlsx)
}