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Level 4

Input and output


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source(Filename)
run the commands in Filename
read.table(Filename)
reads file Filename (in table format) and creates a data frame from it
read.csv(Filename)
reads file Filename and creates a data frame from it (uses "," as separator and "." as decimal)
read.csv2(Filename)
reads file Filename and creates a data frame from it (uses ";" as separator and "," as decimal)
read.delim(Filename)
reads file Filename and creates a data frame from it (uses tab as separator and "." as decimal)
data.entry()
open spreadsheet-like editor for entering or editing data
scan(Filename)
read data into a vector or list from the console or file Filename(primitive function)
download.file(Url, Filename)
download a file from the internet address Url and save it to file Filename
write.table(Df, Filename)
writes table Df to file Filename
write.csv(Df, Filename)
writes table Df to file Filename (uses "," as separator and "." as decimal)
write.csv2(Df, Filename)
writes table Df to file Filename (uses ";" as separator and "," as decimal)