Writing files to disk
fwrite() is a parallel file writer, and like fread(), it also has intelligent defaults.
For example, print dt in your console and notice that the column name has the first and last names separated with a , and the column val is of type list. fwrite() can automatically quote name column and add a secondary separator (the symbol for OR operator, |) for the list column.
Este ejercicio forma parte del curso
Data Manipulation with data.table in R
Instrucciones del ejercicio
- Write
dtto disk using the file name"fwrite.txt". - Import the file using
readLines()to verify that thenamecolumn is quoted automatically and the list column is separated with|. - Import the file using
fread().
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Write dt to fwrite.txt
___(___, "___")
# Import the file using readLines()
___("fwrite.txt")
# Import the file using fread()
___("fwrite.txt")