2 messages · wendy, Peter Alspach
Hi all,
I have a factor array, and some of the elements are empty. How would I
return the index number of the empty elements. For example,
test<-factor(c('A','','B','C','E'))
test
[1] A B C E Levels: A B C E I would like the result equal to 2. Thank you, Wendy
View this message in context: http://r.789695.n4.nabble.com/Find-the-empty-element-in-a-factor-array-tp3238894p3238894.html Sent from the R help mailing list archive at Nabble.com.
Tena koe Wendy which(test=='') Should do it. HTH .... Peter Alspach
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Wendy
Sent: Thursday, 27 January 2011 10:59 a.m.
To: r-help at r-project.org
Subject: [R] Find the empty element in a factor array
Hi all,
I have a factor array, and some of the elements are empty. How would I
return the index number of the empty elements. For example,
test<-factor(c('A','','B','C','E'))
test
[1] A B C E Levels: A B C E I would like the result equal to 2. Thank you, Wendy -- View this message in context: http://r.789695.n4.nabble.com/Find-the- empty-element-in-a-factor-array-tp3238894p3238894.html Sent from the R help mailing list archive at Nabble.com.
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