italicize text

[valentinitnelav]

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I am using your plot_bipartite() function to make some plots and I was wondering if you know of a way to partially italicize text on one side of the plot so that species epithet abbreviations can be plain text while the genus names are italicized?

[valentinitnelav]

It is a bit unclear whether the question refers to the legend, axis labels, or another text element in a ggplot2 plot. Below is an example demonstrating how to add an additional legend for taxa.
I created some sample data containing text where either the first or second word can be italicized, as shown in two examples: one with the first word italicized and another with the second word italicized.

library(plotbiomes)
#>      Happy biome plotting!
library(ggplot2)
library(dplyr)
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union

# Fake data
fake_data <- data.frame(
  temp = c(10, 15, 20),
  pp_cm = c(100, 200, 150),
  taxa = c("Some taxa_1", "Some taxa_2", "Other taxa_3")
)

# Dynamically create formatted labels with the first word italicized
fake_data <- fake_data %>%
  mutate(
    taxa_label = gsub("(\\w+) (\\w+)", "italic('\\1')~'\\2'", taxa)
  )

# Create a plot with automatic legend
whittaker_base_plot() +
  geom_point(data = fake_data,
             aes(x = temp, 
                 y = pp_cm,
                 color = taxa_label)) +  # Map formatted labels to color
  scale_color_manual(
    values = setNames(c("blue", "red", "green"), fake_data$taxa_label),
    labels = parse(text = fake_data$taxa_label),  # Parse dynamic labels
    guide = guide_legend(order = 1) # Ensure this legend is on top of the "Whittaker biomes" default legend
  ) +
  labs(color = "Taxa") +  # Adjust legend title
  theme_minimal()

# Dynamically create formatted labels with the second word italicized
fake_data <- fake_data %>%
  mutate(
    taxa_label = gsub("(\\w+) (\\w+)", "'\\1'~italic('\\2')", taxa)
  )

# Create a plot with automatic legend
whittaker_base_plot() +
  geom_point(data = fake_data,
             aes(x = temp, 
                 y = pp_cm,
                 color = taxa_label)) +  # Map formatted labels to color
  scale_color_manual(
    values = setNames(c("blue", "red", "green"), fake_data$taxa_label),
    labels = parse(text = fake_data$taxa_label),  # Parse dynamic labels
    guide = guide_legend(order = 1) # Ensure this legend is on top of the "Whittaker biomes" default legend
  ) +
  labs(color = "Taxa") +  # Adjust legend title
  theme_minimal()

^{Created on 2024-12-14 with reprex v2.1.0}