Extracting specific columns from a data frame

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I want to construct a new dataframe in R that only contains three of the six columns in my current data frame.

The only command I can think of to extract columns A, B, and E from a data frame called df is this:

data.frame(df$A,df$B,df$E)

Is there a more efficient method to accomplish this?
Jul 6 in Data Analytics by avinash
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