On 5/17/21 7:44 AM, Troels Ring wrote:
Dear friends
I'm trying to plot in silico derived values of 3 types of
buffer-capacities over pH values and want densities of the three
types together at each pH with the pH values on the abscissa.
I have generated some data
set.seed(2345)
pHs <- c(7.2,7.4,7.6)
pH <- rep(pHs,each=30)
BC <- rep(rep(c(20,10,10),each=10),3)+rnorm(90,0,5)
type <- rep(rep(c("TOT","NC","CA"),each=10),3)
ddd <- data.frame(pH,BC,type)
GG <- ggplot()
for (i in 1:3) {
dd <- ddd[ddd$pH==pHs[i],]
GG <- GG + geom_density(data=dd,aes(x=BC,fill=type),alpha=0.1)
}
GG
but here I only get all pH values plotted together whereas I want 3
series in the vertical direction at the three pH values.
Are you perhaps hoping for means of grouped values connected by lines?
Of perhaps a bee-swarm type plot? there are quite a few overlapping points.
-- --
David.
I wonder how this could be done?
All best wishes
Troels Ring, MD
Aalborg, Denmark
PS: Windows 10,
R version 4.0.5 (2021-03-31
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