Hi,
dat1 <- read.csv("Manal.csv",header=FALSE) 
str(dat1)
#'data.frame':    31 obs. of  9 variables:
# $ V1: int  1 1 1 1 3 1 2 2 3 2 ...
# $ V2: int  1 1 0 0 0 1 0 0 0 0 ...
# $ V3: int  0 0 1 0 0 0 0 0 0 0 ...
# $ V4: int  1 1 0 0 0 0 0 0 0 0 ...
# $ V5: int  0 0 1 0 1 0 0 1 1 0 ...
# $ V6: int  0 0 0 0 0 0 0 0 0 0 ...
# $ V7: int  1 0 0 0 0 0 0 0 0 0 ...
# $ V8: int  0 1 0 0 0 0 0 0 0 0 ...
# $ V9: int  0 0 1 0 1 0 0 0 0 0 ...
res <- do.call(rbind,lapply(split(dat1[,-1],dat1[,1]),function(x) (colSums(x)>= 
nrow(x)/2)*1))
dim(res)
#[1] 10  8


res[1:2,] ## this is the result you showed in the excel sheet
  V2 V3 V4 V5 V6 V7 V8 V9
#1  1  0  0  0  0  0  0  0
#2  0  0  0  0  0  0  0  0

Then, you can use ?write.table() as showed previously.


A.K.







On Wednesday, November 20, 2013 7:27 PM, Manal H <mana...@gmail.com> wrote:

Hi
First thanks a lot for answering me. sorry if I wasn't clear, English is not my 
first language. I tried to use your code but it didn't give what I want. I'm 
new in r, so sorry for being annoying.

I have attached a  reproducible example 


thanks and best




On Tue, Nov 19, 2013 at 1:55 PM, <smartpink...@yahoo.com> wrote:

Hi,
>
>I am not sure I understand you completely.  Are you applying the same set of 
>methods on each of the groups?  If yes, then the methods I showed should work. 
> If it is not the case, please provide a reproducible example.
>Thanks.
>A.K.
>
><quote author='memi'>
>
>Thanks a lot arun kirshna , but my question was:
>
>I have this input data
>1 2 4 7
>1 4 5 8
>1 4 5 6
>2 3 4 8
>3 6 7 8
>1 5 6 9
>2 5 7 9
>3 7 9 11
>
>I want the output like:
>
>step1:  from the input data, extract the rows that start with one
>after I do this step,
>I got the following rows: (I don't want extract the first column that
>represents the group number)
> 2 4 7
> 4 5 8
> 4 5 6
> 5 6 9
>
>step1.1: apply some methods in the extracted data, then save the result in
>new text file.
>-----
>
>
>step2:   from the input data, extract the rows that start with two
>after I do this step,
>I got the following rows: (I don't want extract the first column that
>represents the group number)
> 3 4 8
> 5 7 9
>
>step2.1: apply some methods in the extracted data, then save the result
>after the result in step one.
>----
>
>step3:  from the input data, extract the rows that start with three
>after I do this step,
>I got the following rows: (I don't want extract the first column that
>represents the group number)
> 6 7 8
> 7 9 11
>
>step3.1: apply some methods in the extracted data, then save the result
>after the result in step two.
>-----
>
>and so on
>my input txt file has more than 9000 rows, each row start with group number,
>these number from 1 to 100
>so I want do the process 100 times (from  1 to 100)
> - extract the rows that start with 1, apply methods on them, save the
>result in new txt file
>-  extract the rows that start with 2, apply methods on them, save the
>result in new txt file after the previous result.
>-  extract the rows that start with 3, apply methods on them, save the
>result in new txt file after the previous result.
>-  extract the rows that start with 4, apply methods on them, save the
>result in new txt file after the previous result.
>
>.
>.
>-  extract the rows that start with 100, apply methods on them, save the
>result in new txt file after the previous result.
>
>
>
></quote>
>Quoted from:
>http://r.789695.n4.nabble.com/Re-How-to-extract-sets-of-rows-not-sorted-from-text-file-in-R-do-some-methods-on-these-rows-save-thee-tp4680741p4680759.html
>
>
>_____________________________________
>Sent from http://r.789695.n4.nabble.com
>
>

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