Re: [R] series of densities
Thanks a lot to David and William - I think ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH), col=type))+geom_boxplot() was very helpful! All best Troels Den 18-05-2021 kl. 02:27 skrev David Winsemius: ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH), col=type))+geom_boxplot() __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
Re: [R] series of densities
Hi Troels,
Have you considered using Lattice graphics?
Adapting from examples on the help page:
> ?histogram()
> histogram( ~ BC | pH, data = ddd, type = "density",
xlab = "BC", layout = c(1, 3), aspect = 0.618,
strip = strip.custom(strip.levels=c(TRUE,TRUE)),
panel = function(x, ...) {
panel.histogram(x, ...)
panel.mathdensity(dmath = dnorm, col = 1,
args = list(mean=mean(x), sd=sd(x)) )
} )
HTH, Bill.
W. Michels, Ph.D.
On Mon, May 17, 2021 at 8:12 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$pH==pHs[i],]
>GG <- GG + geom_density(data=dd,aes(x=BC,fill=type),alpha=0.1)
> }
> GG
>
> but here I only get all pH values plotted together whereas I want 3
> series in the vertical direction at the three pH values.
>
> I wonder how this could be done?
>
> All best wishes
>
> Troels Ring, MD
> Aalborg, Denmark
>
> PS: Windows 10,
>
> R version 4.0.5 (2021-03-31
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] series of densities
On 5/17/21 7:44 AM, Troels Ring wrote:
Dear friends
I'm trying to plot in silico derived values of 3 types of
buffer-capacities over pH values and want densities of the three
types together at each pH with the pH values on the abscissa.
I have generated some data
set.seed(2345)
pHs <- c(7.2,7.4,7.6)
pH <- rep(pHs,each=30)
BC <- rep(rep(c(20,10,10),each=10),3)+rnorm(90,0,5)
type <- rep(rep(c("TOT","NC","CA"),each=10),3)
ddd <- data.frame(pH,BC,type)
GG <- ggplot()
for (i in 1:3) {
dd <- ddd[ddd$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.
I wonder how this could be done?
Here are two different displays of the data. I haven't figured out what
was intended by the request for " 3 series in the vertical direction at
the three pH values".
library(ggplot2)
#violin plots are density-like
ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH),
col=type))+geom_violin()
#boxplots are summary methods
ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH),
col=type))+geom_boxplot()
All best wishes
Troels Ring, MD
Aalborg, Denmark
PS: Windows 10,
R version 4.0.5 (2021-03-31
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
Re: [R] series of densities
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$pH==pHs[i],]
GG <- GG + geom_density(data=dd,aes(x=BC,fill=type),alpha=0.1)
}
GG
but here I only get all pH values plotted together whereas I want 3
series in the vertical direction at the three pH values.
Are you perhaps hoping for means of grouped values connected by lines?
Of perhaps a bee-swarm type plot? there are quite a few overlapping points.
-- --
David.
I wonder how this could be done?
All best wishes
Troels Ring, MD
Aalborg, Denmark
PS: Windows 10,
R version 4.0.5 (2021-03-31
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] series of densities
Dear friends
I'm trying to plot in silico derived values of 3 types of
buffer-capacities over pH values and want densities of the three types
together at each pH with the pH values on the abscissa.
I have generated some data
set.seed(2345)
pHs <- c(7.2,7.4,7.6)
pH <- rep(pHs,each=30)
BC <- rep(rep(c(20,10,10),each=10),3)+rnorm(90,0,5)
type <- rep(rep(c("TOT","NC","CA"),each=10),3)
ddd <- data.frame(pH,BC,type)
GG <- ggplot()
for (i in 1:3) {
dd <- ddd[ddd$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.
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
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
