[R] ggplot with sparse layout

[ONKELINX, Thierry]

Dear Tom,

Does ggplot(data,aes(x=x,y=y))+geom_point(aes(color=group))+facet_wrap(~group + id) gives what you need?

Note that facet_grid by design aligns the subplots into rows and columns with the same level.

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher
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________________________________________
Van: R-help [r-help-bounces op r-project.org] namens Tom Wright [tom op maladmin.com]
Verzonden: dinsdag 6 januari 2015 22:13
Aan: R. Help
Onderwerp: [R] ggplot with sparse layout

Hi,

I would like to plot the following data such that each plot represents the
data from a single id and the plots are grouped according to the group
variable.

data<-data.frame(id=factor(rep(1:6,each=3)),
 group=factor(c('a','a','b','c','c','c')),
 x=runif(18,0,10),
 y=rnorm(18,0,1))

The following ggplot nearly works but I would prefer to not plot the
missing combinations, i.e. each row will be a different length.

ggplot(data,aes(x=x,y=y))+geom_point(aes(color=group))+facet_grid(group~id)

Is this possible using ggplot or will I need to craft something using grid?

Thanks for any ideas.
Tom

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