theme_arrowlength | R Documentation |
A set of convenience functions to rapidly change the length of the ternary arrows, the convenience functions include presets
(short, normal, long), or makes provision for the user to specify custom fractional starting and ending values relative to the
size of the ternary axis. In the event that the user elects to specify the values via the theme_arrowcustomlength
(or its aliasses),
then the user can specify a single scalar value which apply to all three (3) arrows, or, alternatively, can provide a numeric vector
of length three (3), one for each arrow respectively.
theme_arrowcustomlength(
start = getOption("tern.arrow.start"),
finish = getOption("tern.arrow.finish")
)
theme_arrowlength(
start = getOption("tern.arrow.start"),
finish = getOption("tern.arrow.finish")
)
theme_arrowsmall()
theme_arrowshort()
theme_arrownormal()
theme_arrowdefault()
theme_arrowlarge()
theme_arrowlong()
start |
a numeric scalar, or numeric vector of length three (3), representing the fractional [0,1] position along the axis where the arrow/s should START. |
finish |
a numeric scalar, or numeric vector of length three (3), representing the fractional [0,1] position along the axis where the arrow/s should FINISH. |
If the ternary arrows are switched OFF
(via the theme_hidearrows
command, or the theme(tern.axis.arrow.show=FALSE)
theme element), then under such circumstance,
these convenience functions will turn ON the ternary arrows, essentially running theme_showarrows
or theme(tern.axis.arrow.show=TRUE)
If for some reason, the start
and finish
arguments are identical, then the ternary arrows will be switched OFF, tantamount to
running the theme_hidearrows
convenience function.
theme_arrowcustomlength
or theme_arrowlength
(alias) sets the ternary arrow lengths to values as specified by the user,
occupying a length between the values as specified by the start
and finish
arguments (fractions) relative to the
length of the ternary axis.
theme_arrowsmall
or theme_arrowshort
(alias) reduces the ternary arrows to short arrows, occupying a length between
0.4 and 0.6 of the length of the ternary axis
theme_arrownormal
or theme_arrowdefault
(alias) reduces the ternary arrows to normally sized arrows, occupying a length between
getOption("tern.arrow.start")
and getOption("tern.arrow.finish")
global option values, whatever they may be.
theme_arrowlarge
or theme_arrowlong
(alias) increases the ternary arrows to long arrows occupying a length between
0.2 and 0.8 of the length of the ternary axis
Nicholas Hamilton
theme_arrowbaseline
and theme(tern.axis.arrow.sep=X)
for methods to adjust the separation distance of the ternary arrows
from the ternary axes.
#Create base plot
plot <- ggtern(data=data.frame(x=1,y=1,z=1),aes(x,y,z)) + geom_point()
#Pre-Specified Values
plot + theme_arrowsmall()
## Alternatives, Uncomment lines below
plot + theme_arrownormal()
plot + theme_arrowlarge()
plot + theme_arrowcustomlength(.1,.8)
plot + theme_arrowlength(start=c(.1,.25,.4),finish=c(.9,.75,.6))
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.