[R] APA two-way bar-chart

[Jim Lemon]

On 01/04/2014 03:08 AM, Benjamin Telkamp [via R] wrote:
> Dear R-users,
>
> I'm struggling with APA formatted two way BAR-charts according to apa-style
> i should have the legend in the background of my plot (so above the bars and
> not beside the picture/plot itself) and the background should be completely
> white without gridlines or what so ever. Could any one give me a hint or
> solution? See Below for my commands
>
> thank you so much,
>
> Benjamin Telkamp (Email: inzichtelijk at gmail.com, The Netherlands)
>
> these are the commands used so far which just didn't give me what i wanted
>
> library(ggplot2)
> library(foreign)
> install.packages("Hmisc")
> DATA1<- read.spss(file=DATA1, use.value.labels=TRUE, to.data.frame=TRUE)
> Bar_PD<- ggplot(DATA1, aes(Age_group, IRI_PD ))
> Bar_PD + stat_summary(fun.y = mean, geom = "bar", fill = "Purple") +
> stat_summary(fun.data = mean_cl_normal, geom = "errorbar", width = 0.2) +
> labs (x = "Leeftijdsgroep", y = "IRI PD") + theme(plot.background =
> element_rect(colour= "White"))
>
Hi Benjamin,
I'm not sure what you mean by a two way bar chart. If it is a grouped 
barplot in which the members of each group are defined by the levels of 
one discrete variable and the groups are defined by another discrete 
variable, the basic "barplot" function with an added legend should do 
what you want. Can you give an example such as an image on the internet 
that shows what you want?

Jim