Remove selected columns in R dataframe

Question

dataframename <- data.frame(
  col1=1:10,
  col2=10:1,
  col3=1:50,
  col4=11:20
)

Consider the above dataframe and I want to remove column 1 and column 4.
1. Without using any package.
2. The answer should be in dataframe format only and not vector results.

google search: [Link1](http://stackoverflow.com/questions/4605206/drop-data-frame-columns-by-name), [Link2](http://stackoverflow.com/questions/6286313/remove-an-entire-column-from-a-data-frame-in-r), [Link3](http://stackoverflow.com/questions/7072159/how-do-you-remove-columns-from-a-data-frame) — Sotos, Jan 24 '17 at 11:17

score -2 · Accepted Answer · edited Jan 24 '17 at 11:21

-2

###Use subset command:###
dataframename <- subset(dataframename, select = -c(col1,col4) )

###One more approach is you can use list(NULL) to the dataframe:###
dataframename[,c("col1","col4")] <- list(NULL)

edited Jan 24 '17 at 11:21

David Arenburg

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answered Jan 24 '17 at 11:13

Sriharsha

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Remove selected columns in R dataframe

1 Answers1