Je voudrais reproduire l'intrigue immédiatement ci-dessous en utilisant ggplot2. Je peux m'approcher, mais je ne peux pas supprimer les bordures supérieure et droite. Ci-dessous, je présente plusieurs tentatives d'utilisation de ggplot2, y compris plusieurs suggestions trouvées sur ou via Stackoverflow. Malheureusement, je n'ai pas été en mesure de faire fonctionner ces suggestions.
J'espère que quelqu'un pourra corriger un ou plusieurs des extraits de code ci-dessous.
Merci pour vos suggestions.
# desired plot
a <- seq(1,20)
b <- a^0.25
plot(a,b, bty = "l")
library(ggplot2)
df <- as.data.frame(cbind(a,b))
# 1. ggplot2 default
ggplot(df, aes(x = a, y = b)) + geom_point()
# 2. removes background color
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black'))
# 3. also removes gridlines
none <- theme_blank()
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black')) + opts(panel.grid.major = none, panel.grid.minor = none)
# 4. does not remove top and right border
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black')) + opts(panel.grid.major = none, panel.grid.minor = none) + opts(panel.border = none)
# 5. does not remove top and right border
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black')) + opts(panel.grid.major = none, panel.grid.minor = none) + opts(axis.line = theme_segment())
# 6. removes x and y axis in addition to top and right border
# http://stackoverflow.com/questions/5458409/remove-top-and-right-border-from-ggplot2
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black')) + opts(panel.grid.major = none, panel.grid.minor = none) + opts(panel.background=theme_rect(colour=NA))
# 7. returns error when attempting to remove top and right border
# https://groups.google.com/group/ggplot2/browse_thread/thread/f998d113638bf251
#
# Error in el(...) : could not find function "polylineGrob"
#
theme_L_border <- function(colour = "black", size = 1, linetype = 1) {
structure(
function(x = 0, y = 0, width = 1, height = 1, ...) {
polylineGrob(
x=c(x+width, x, x), y=c(y,y,y+height), ..., default.units = "npc",
gp=gpar(lwd=size, col=colour, lty=linetype),
)
},
class = "theme",
type = "box",
call = match.call()
)
}
ggplot(df, aes(x = a, y = b)) + geom_point() + opts(panel.background = theme_rect(fill='white', colour='black')) + opts(panel.grid.major = none, panel.grid.minor = none) + opts( panel.border = theme_L_border())