Kombinieren Sie Legenden für Farbe und Form zu einer einzigen Legende

Ich erstelle ein Diagramm in ggplot aus einem 2 x 2-Studiendesign und möchte 2 Farben und 2 Symbole verwenden, um meine 4 verschiedenen Behandlungskombinationen zu klassifizieren. Derzeit habe ich 2 Legenden, eine für die Farben und eine für die beiden Formen. Wie kann ich sie zu einer einzigen Legende kombinieren, sodass ich einen blauen Kreis, einen roten Kreis, ein blaues Dreieck und ein gelesenes Dreieck habe?

Daten:

state1 <- c(rep(c(rep("N", 7), rep("Y", 7)), 2))
year <- rep(c(2003:2009), 4)
group1 <- c(rep("C", 14), rep("E", 14))
group2 <- paste(state1, group1, sep = "")
beta <- c(0.16,0.15,0.08,0.08,0.18,0.48,0.14,0.19,0.00,0.00,0.04,0.08,0.27,0.03,0.11,0.12,0.09,0.09,0.10,0.19,0.16,0.00,0.11,0.07,0.08,0.09,0.19,0.10)
    lcl <- c(0.13,0.12,0.05,0.05,0.12,0.35,0.06,0.13,0.00,0.00,0.01,0.04,0.20,0.00,0.09,0.09,0.06,0.06,0.07,0.15,0.11,0.00,0.07,0.03,0.05,0.06,0.15,0.06)
    ucl <- c(0.20,0.20,0.13,0.14,0.27,0.61,0.28,0.27,0.00,1.00,0.16,0.16,0.36,0.82,0.14,0.15,0.13,0.13,0.15,0.23,0.21,0.00,0.15,0.14,0.12,0.12,0.23,0.16)
data <- data.frame(state1,year,group1,group2,beta,lcl,ucl)

Handlung:

library(ggplot2)
pd <- position_dodge(.65)
ggplot(data = data, aes(x = year, y = beta, colour = state1, group = group2, shape = group1)) +
  geom_point(position = pd, size = 4) +
  geom_errorbar(aes(ymin = lcl, ymax = ucl),colour = "black", width = 0.5, position = pd) +
  scale_colour_hue(name = "Treatment & State",  #Legend label, use darker colors
                   labels = c("Control", "Exclosure"),
                   l = 40) +
  scale_shape(name = "State", labels = c("Non-F", "Flwr"))

Sie müssen identische Werte nameund labelsWerte für Form und Farbskala verwenden.

pd <- position_dodge(.65)
ggplot(data = data,aes(x= year, y = beta, colour = group2, shape = group2)) +    
  geom_point(position = pd, size = 4) +
  geom_errorbar(aes(ymin = lcl, ymax = ucl), colour = "black", width = 0.5, position = pd) +
  scale_colour_manual(name = "Treatment & State",
                      labels = c("Control, Non-F", "Control, Flwr", "Exclosure, Non-F", "Exclosure, Flwr"),
                      values = c("blue", "red", "blue", "red")) +   
  scale_shape_manual(name = "Treatment & State",
                     labels = c("Control, Non-F", "Control, Flwr", "Exclosure, Non-F", "Exclosure, Flwr"),
                     values = c(19, 19, 17, 17))

Roter Kreis, blauer Kreis, rotes Dreieck, blaues Dreieck, wie Sie gefragt haben:

ggplot(data =data,aes(x= year, y = beta, shape=group2, colour=group2,group = group2)) +
geom_errorbar(aes(ymin = lcl, ymax = ucl),colour = "black", width = 0.5, position = pd) + 
geom_point(position = pd, size = 4) +  
scale_colour_manual(values=c("red","blue","red","blue")) +   
scale_shape_manual(values=c(19,19,17,17)) +
scale_fill_hue(name="Treatment & State",  #Legend label, use darker colors
labels=c("Control", "Exclosure"),l=40)