19.3 CSV No Header

20220906

The following example will add a header to the csv file and will allow any further then operations like a filter to refer to specific columns by name.

mlr --csv --implicit-csv-header label date,amount,description transactions.csv
mlr --csv --implicit-csv-header label date,amount,description then filter '$description == "INTEREST"' transactions.csv


Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0