[R] Creating vegetation distance groups from one column

[arun]

Hi,
Try this:
data.to.analyze<-read.table(text="
Area Veg
456       0

3400      10

79          25

56           18

467         4

67          7

839        30

1120      16

3482      32
",sep="",header=TRUE)
data.to.analyze$VegIndex=cut(data.to.analyze 
  $Veg,breaks=c(-5,0,5,10,15,20,25,30,35),
    labels=c("(-5-0)", "(1-5)", "(6-10)", "(11-15)", "(16-20)","(21-25)","(26-30)","(31-35)"))
VegIndex <- data.to.analyze$VegIndex
plot(VegIndex)
A.K.




----- Original Message -----
From: Jhope <jeanwaijang at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Friday, October 5, 2012 3:38 AM
Subject: Re: [R] Creating vegetation distance groups from one column

Thank you! That has worked for me when creating graphs. In plyr I used the
script:

# Veg Index 
data.to.analyze$VegIndex <- cut(data.to.analyze$Veg,
      breaks=seq(0, 35, 5), include.lowest=TRUE)
VegIndex <- data.to.analyze$VegIndex
plot(VegIndex)

But the vegetation distances on the x-axis in the graph are showing up as: 
[-5,0] (0,5] (5,10] (10,15] (15,20] (20,25] (25,30] 

I am concerned these vegetation classes are not grouped probably and there
is overlap between the classes. It should read, preferably without brackets
or only one kind (): 
(-5-0) (1-5) (6-10) (11-15) (16-20) (21-25) (26-30)

How do I fix this?
Please advise, Jean



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