ggpanel: Create a horizontal or vertical panel of plots with a shared...

In jpshanno/ecoflux: Functions for ecological flux studies including sap flux and soil/stem C efflux.

Description

Combines multiple plots generated by ggplot2 into a 1 column (vertical) or 1 row (horizontal) panel with a shared legend.

Usage

ggpanel(plots, orientation = "horizontal", legend.position = "bottom")

Arguments

plots	A list of ggplot2 plots
orientation	A character of "horizontal" or "vertical", defaults to 'horizontal'
legend.position	A character vector of "top", "bottom", "left", or "right", defaults to 'bottom'; to remove legend use "none"

Value

A gtable object

Examples

# Create datasets for plotting
data1 <- 
  data.frame(x = c(1:5, 1:5, 1:5, 1:5),
             treatment = rep(c(letters[1:2]), 
                             each = 5, 
                             times = 2),
             year = rep(c("2015", "2016"), 
                        each = 10),
             power = c(rep(2, times = 5), 
                       rep(2.1, times = 5), 
                       rep(2.5, times = 5), 
                       rep(3, times = 5))) %>% 
  mutate(y = rnorm(10, mean = 0, sd = 2) + x ^ power)

data2 <-
  data.frame(x = c(1:5, 1:5, 1:5, 1:5),
             treatment = rep(c(letters[1:2]), 
                             each = 5, 
                             times = 2),
             year = rep(c("2015", "2016"), 
                        each = 10),
             slope = c(rep(3, times = 5), 
                       rep(4, times = 5), 
                       rep(3, times = 5), 
                       rep(7, times = 5))) %>% 
  mutate(y = rnorm(20, mean = 0, sd = 2) + x * slope)

# Create two plots
plot1 <- 
  ggplot(data1, 
         aes(x, y, color = treatment)) + 
  geom_point() + 
  geom_smooth(span = 1, se = F) + 
  facet_grid(.~year)

plot2 <- 
  ggplot(data2, 
         aes(x, y, color = treatment)) + 
  geom_point() + 
  geom_smooth(method = "lm", span = 1, se = F) + 
  facet_grid(.~year)

# Generate a Panel
ggpanel(list(plot1, plot2), 
        orientation = "vertical", 
        legend.position = "right")

jpshanno/ecoflux documentation built on May 19, 2019, 11:51 p.m.