[R] The contrary of command %in%

[Christos Hatzis]

A flexible way for doing this is to define logical vectors for the types of
samples that you want to include or exclude.  You can then use logical
negation to select the complementary set:

inSet1 <- HData$H < 1.3
inSet2 <- HData$H < 8 & Hdata$DBH > 20

HDataPart1 <- Hdata[!inSet1, ]
HDataPart2 <- Hdata[!inSet2, ] 

-Christos

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Ghislain Vieilledent
Sent: Thursday, April 20, 2006 8:55 AM
To: r-help at stat.math.ethz.ch
Subject: [R] The contrary of command %in%

Dear r-list,

I've got a data base:
> HData[1:10,]
   NumTree   Site Species Date Age DBH    H IdentTree
1        1 Queige  Spruce 2002 184  49 33.5  Queige 1
2        2 Queige     Fir 2002  NA   5  4.6  Queige 2
3        3 Queige     Fir 2002  25   8  6.6  Queige 3
4        4 Queige  Spruce 2002 198  47 32.5  Queige 4
5        5 Queige     Fir 2002 200  59 35.3  Queige 5
6        6 Queige  Spruce 2002  80  16  9.4  Queige 6
7        7 Queige     Fir 2002  NA   5  4.2  Queige 7
8        8 Queige     Fir 2002 200  44 32.5  Queige 8
9        9 Queige     Fir 2002  NA   5  3.4  Queige 9
10      10 Queige  Spruce 2002 167  48 32.8 Queige 10
...

I want to remove particular points determined by
> HDataPartP<-HData[H<1.30,]
and
> HDataPartP2<-HData[H<8&DBH>20,]

That's why I want to use subset in a close form to:
HData2<-subset(HData,HData$H>1.30&HData$IdentTree
"not"%in%HDataPartP2$IdentTree)

How should I do that ?
Is there any R-syntax saying "not element of that object" ?

Thanks for your help.

Ghislain.

--
Ghislain Vieilledent
06 24 62 65 07

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