On Sunday, 2 October 2022 at 21:18:43 UTC, mw wrote:
[snipping]A CSV library should consider all the use cases, and allow users to ignore certain fields.
In R, you have to force `NULL` for `colClasses` for the other columns. In other words, the user has to know the number of columns of the csv file in order to be able to skip them.
https://stackoverflow.com/questions/29332713/how-to-skip-column-when-reading-csv-file
