Reading Files into and out of R
[This article was first published on R in Trevor French on Medium, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.
Video Here: https://www.youtube.com/watch?v=ibkBTqx3LW8
The following code shows how to read a .CSV/.XLSX file into R, perform a manipulation, and write a new file out of R.
#Clears environment rm(list = ls(all.names = TRUE)) #------------------------------------------------------------------- #-----------------------------LIBRARIES----------------------------- #------------------------------------------------------------------- library(readxl) library(dplyr) library(writexl) #------------------------------------------------------------------- #---------------------------DATA SOURCES---------------------------- #------------------------------------------------------------------- #Set your working directory wd <- "C:/[YOUR PATH]" #Set path to an Excel file excelFile <- paste(wd, "input.xlsx", sep='') #Set path to a CSV file csvFile <- paste(wd, "input.csv", sep='') #Read Excel file into R and view it rawExcel <- read_excel(excelFile) View(rawExcel) #Read CSV file into R and view it rawCSV <- read.csv(csvFile) View(rawCSV) #------------------------------------------------------------------- #------------------------DATA MANIPULATION-------------------------- #------------------------------------------------------------------- #Add a pay raise column equal to 5% of base Salary df <- rawExcel %>% mutate(rawExcel, "Pay Raise" = rawExcel$`Base Salary` * .05) View(df) #------------------------------------------------------------------- #-------------------------OUTPUT NEW FILE--------------------------- #------------------------------------------------------------------- #Set path to write Excel file excelOut <- paste(wd, "output.xlsx", sep = '') #Set path to write CSV file csvOut <- paste(wd, "output.csv", sep = '') #Write Excel file write_xlsx(df, excelOut) #Write CSV file write.csv(df, csvOut, row.names = T)
Reading Files into and out of R was originally published in Trevor French on Medium, where people are continuing the conversation by highlighting and responding to this story.
To leave a comment for the author, please follow the link and comment on their blog: R in Trevor French on Medium.
R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.