Send and read SEO data to Excel/CSV

CSV and Excel file remain one of amongst the most well-used file formats for exchange data.
Read your data from a CSV
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#setup where to read the file
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setwd("~/Desktop")
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# en write the file
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test <- read.csv(df, "data.csv")
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Export your data into a CSV
assuming your data is store inside df var, fairly simple:
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#setup where to write the file
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setwd("~/Desktop")
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# en write the file
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write.csv(df, "data.csv")
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Read an excel
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# the file.choose() will prompte a file selector
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# the 1 say we want to load the first tab
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test <- xlsx::read.xlsx(file.choose(),1)
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Export your data into an excel file
A little bit more complex, we’ll use the ‘xlsx’ package
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#setup where to write the file
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setwd("~/Desktop")
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# if the package is not instal yet, run this  
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# install.packages("xlsx")
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# Loading the package 
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library(xlsx)
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# we write the file 
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write.xlsx(df, "data.xlsx")
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​
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A few more tips for you:
I’ll like to use the sheetName option to explicitly name the tab. The default name is “Sheet1”. Quite useful to have a record of when the file has been generated for example. Replace last instruction what follows and you’ll be able to know.
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write.xlsx(df, "data.xlsx", sheetName=format(Sys.Date(), "%d %b %Y"))
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Another good one that I like is to send the excel file to a Shared folder directly. Replace first instruction by
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setwd("/Users/me/Dropbox/Public")
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Of course, replace the file path with yours.
Import and merge a batch of CSV files
Aggregate several CSV files into one using file name as a column
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library(plyr)
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library(readr)
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library(purrr)
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​
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# add the path where the csv's are located
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setwd("./Downloads/test/")
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​
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# list csv files inside the directory
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# for each: import the csv (read.csv function)
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# add filename as a column
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# and merge
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​
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Tbl <- list.files(path = "./",
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                  pattern="*.csv", 
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                  full.names = T) %>% 
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                  map_df(function(x) read_csv(x, col_types = cols(.default = "c")) %>%
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                  mutate(filename=gsub(".csv","",basename(x)))) 
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​
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​
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View(Tbl)
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Last modified 8mo ago

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Contents

Read your data from a CSV

Export your data into a CSV

Read an excel

Export your data into an excel file

Import and merge a batch of CSV files