I suggest you go back to the Introduction to R document supplied with the
software and read about indexing.
In particular, pay attention to indexing into a matrix or data frame using
data1[rowspec,columnspec] syntax. There are three kinds of row and column
specification types, and any of the the three can be used to solve your problem.
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Sent from my phone. Please excuse my brevity.
siddu479 <onlyfordigitalst...@gmail.com> wrote:
>Dear R-Users and experts,
>This is my first post in this forum.
>
>I have two csv files file1 and file2.
>file1(many rows and columns) is read into dataframe *data1*
>File2 is read into dataframe *data2* which have only one column of data
>which contains the column names that need to be removed from dataframe
>*data1*columns and update the *data1 *data frame.
>Example:
>data1 <-read.csv(file1.......,header=T)
>Sno,Data_1,Data_2,Data_3
>1,2,3,4
>
>data2<- read.csv(file2,......header=F)
>Data_2
>Data_3
>
>The output *data1.new* data frame should be like this
>
>Sno,Data_1
>1,2
>
>So I request the R code to accomplish this task.
>
>Regards
>Sidda
>
>
>
>
>--
>View this message in context:
>http://r.789695.n4.nabble.com/Filtering-few-column-from-one-data-frame-based-on-another-data-frame-tp4646072.html
>Sent from the R help mailing list archive at Nabble.com.
>
>______________________________________________
>R-help@r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
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