I have a data table:
V1 V2 V3
3 4 9
4 7 4
2 8 3
I want to arrange all columns in descending order at once. I tried setorder and order function but they are processing only one column at once.
Please suggest how to proceed.
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Do you mean `df[, lapply(.SD, sort, decreasing = TRUE)]` ? – Ronak Shah Feb 29 '20 at 05:22
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hi, i didnt how to use .sd here. thanks.this works – jalaj pathak Feb 29 '20 at 05:25