[R] Trim

[arun]

Hi,
May be this helps:
dat1<-read.table(text="
1 2006-11      NaN
2 2006-12      NaN
3 2006-10 0.1577647
4 2006-11      NaN
5 2006-12      NaN
6 2007-01      NaN
7 2007-02      NaN
8 2007-03 0.2956429
9 2007-01      NaN
10 2007-02      NaN
",sep="",header=FALSE,stringsAsFactors=FALSE)
res<-dat1[seq(which(!is.na(dat1$V3))[1],which(!is.na(dat1$V3))[2],by=1),]
 res
#  V1      V2        V3
#3  3 2006-10 0.1577647
#4  4 2006-11       NaN
#5  5 2006-12       NaN
#6  6 2007-01       NaN
#7  7 2007-02       NaN
#8  8 2007-03 0.2956429
A.K.



----- Original Message -----
From: Vasilchenko Aleksander <vasilchenko.a.p at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Wednesday, December 5, 2012 5:46 AM
Subject: [R] Trim

Hello,
I have a dataframe

1 2006-11       NaN
2 2006-12       NaN
3 2006-10 0.1577647
4 2006-11       NaN
5 2006-12       NaN
6 2007-01       NaN
7 2007-02       NaN
8 2007-03 0.2956429
9 2007-01       NaN
10 2007-02       NaN
I need to trim first and last NaN rows
Result -
1 2006-10 0.1577647
2 2006-11       NaN
3 2006-12       NaN
4 2007-01       NaN
5 2007-02       NaN
6 2007-03 0.2956429
Thanks.

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