Import data

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Import large files

The regular tools used to import CSV or Excel files do not work with “large” files1For instance, I couldn’t import a ~20Mb CSV file made of 480.000 rows..

I personally used fread() from data.table. On top of importing large CSV files in a breeze, it also provides neat options for weirdly-formatted files (yes, I am looking at you, Mesa). Depending on your needs, another package may be of a better help (see sources).

data <- fread("data.csv")

data is not an actual data frame. You may need to convert it.