You've spotted it!
table(df$area)
0 1 2 3 4 5 7
21 27 71 46 19 3 1
There are no values in area 6.
Thank you very much.
Jabez
- Original Message
From: Petr PIKAL [EMAIL PROTECTED]
To: Jabez Wilson [EMAIL PROTECTED]
Cc: R-Help r-help@stat.math.ethz.ch
Sent: Friday, 10 August, 2007 1:02:21 PM
Subject: Odp: [R] having problems with factor()
Hi
[EMAIL PROTECTED] napsal dne 10.08.2007 13:41:53:
Dear R Help,
I have a set of data of heights of trees described by area that they are
in.
The areas are numerical (0 to 7).
htarea
1 320 3
2 410 4
3 230 2
4 360 3
5 126 1
6 280 2
7 260 2
8 280 2
9 280 2
10 260 2
...
180 450 4
181 90 1
182 120 1
183 440 4
184 210 2
185 330 3
186 210 2
187 100 1
188 0 0
I want to convert the area column values to factors, to do an anova.
However, if I use:
df$areaf - factor(df$area,
labels=c(0,I,II,III,IV,V,VI,VII))
it gives the following message:
Hm, maybe some of the values are missing
num-sample(1:3, 10, replace=T)
num
[1] 1 3 1 2 3 3 1 3 3 3
factor(num, labels=c(O, I, II))
[1] O II O I II II O II II II
Levels: O I II
factor(num, labels=c(O, I, II, III))
Error in factor(num, labels = c(O, I, II, III)) :
invalid labels; length 4 should be 1 or 3
try
table(df$area)
to see what level you really have
Regards
Petr
Error in factor(df$area, labels = c(0, I, II, III, IV, V,
VI, :
invalid labels; length 8 should be 1 or 7
Can anyone help?
Jabez
___
now.
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
___
now.
[[alternative HTML version deleted]]
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
