Hi everyone,
I am trying to apply the following lines of coding (they are from the R
Graphics Cookbook, Chapter 3: Bar Graphs):
ggplot(data, aes(x=year_bis,y=area)) + geom_bar(stat="identity")
I do have a data.frame as follow:
id year start_day loc area
1 1 2010 155 20 3.4388
2 1 2010 169 18 11.6576
3 1 2010 183 17 15.5893
4 1 2010 71 41 22.0356
5 1 2010 127 42 27.2602
6 1 2010 99 37 52.2779
> str(data)'data.frame': 221 obs. of 5 variables:
$ id : int 1 1 1 1 1 1 1 1 1 1 ...
$ year : int 2010 2010 2010 2010 2010 2010 2008 2010 2009 2010 ...
$ start_day: int 155 169 183 71 127 99 337 1 337 113 ...
$ loc : int 20 18 17 41 42 37 10 36 41 40 ...
$ area : num 3.44 11.66 15.59 22.04 27.26 ...
I called both packages "gcookbook" and "ggplot2" (among others). That's a
rather easy line of coding, but for some reasons I do have the following
warning message:
Error in as.environment(x) :
incorrect
objet for 'as.environment'
Do you have any clue why?
Thanks a lot.
Greetings.
--
Dylann Kersusan
Master Biodiversity and Conservation
Zoology dept. Stockholm University
--
Grimsö Wildlife Research Center
Ecology dept. SLU
Riddarhyttan-Sweden
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