[R] How to store and manipulate survey data like this?

[arun]

Hi,
You could try:
dat2<- read.table(text='
Respondent, Question1
1, "1,4,7"
2, "2,7,5"
3, "6,3,5"
4, ""
',sep=",",header=TRUE,stringsAsFactors=FALSE)
library(stringr)
dat2New<-cbind(dat2,do.call(rbind,lapply( str_split(str_trim(dat2[,2]),","),as.numeric)))
colnames(dat2New)[3:5]<- paste("Q1",colnames(dat2New)[3:5],sep=".")
 dat2New
#  Respondent Question1 Q1.1 Q1.2 Q1.3
#1          1     1,4,7    1    4    7
#2          2     2,7,5    2    7    5
#3          3     6,3,5    6    3    5
#4          4             NA   NA   NA
A.K.



----- Original Message -----
From: Walter Anderson <wandrson01 at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Tuesday, August 13, 2013 12:17 PM
Subject: [R] How to store and manipulate survey data like this?

I have to process a set of survey data with questions that are formatted 
like this;

1) Pick your top three breeds (pick 3)
  1  Rottweiler
  2  Pit Bull
  3  German Shepard
  4  Poodle
  5  Border Collie
  6  Dalmation
  7  Mixed Breed

and the answers are formatted like this:

Respondent, Question1
1, "1,4,7"
2, "2,7,5"
3, "6,3,5"
4, ""
...

Any suggestions on how to preprocess the file to be able to do things 
like frequency analysis for breeds?

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