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Editorial Team
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Asked: 2026-05-21T05:09:07+00:00

I have loaded a csv file to R. There are 10 columns in the

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  1. I have loaded a csv file to R.

  2. There are 10 columns in the file.

  3. I want to save the 1st 3rd and 5th column to a new file. What is the command line to delete other columns?

  4. I want to save the new table, what is the command line should be used?

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1 Answer

  1. Editorial Team

    First, I’ll answer your question. If d is your data frame loaded from your file, then:

    d_subset = d[,c(1,3,5)]
write.csv(d_subset, file="file.csv")

    Second, I’ll give you some advice. Read the documentation or buy a good R book. You can even download An introduction to R for free. Many of the questions you are asking are very basic. While most people are happy to handle the odd basic question, asking three or four a day really isn’t sustainable.

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