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EVR628tools

EVR628tools contains a series of datasets, palettes, and functions to help in the instruction of EVR 528 / 628 Introduction to Data Management and Visualization for Environmental Scientists.

Installation

You can install the development version of EVR628tools like so:

# install.packages("pak") #In case you don't have pak installed
pak::pak("jcvdav/EVR628tools")

Example

The package contains functions with the preface data_* and palette_*. The following example uses one of each. Take a look at the Reference to see a full list of datasets and functions available. The task at hand is simple. We’ll use the EVR628tools::data_lionfish data to make a plot showing how fish size (length and weight) varies by depth using a scatterplot. We’ll use the EVR628tools::palette_UM() color palette to color our points by site. I recommend that you look at the documentation of the data ?EVR628tools::data_lionfish and the color palette EVR628tools::palette_UM() before running the code.

library(ggplot2)

# First, inspect the data
head(EVR628tools::data_lionfish)
#> # A tibble: 6 × 9
#>   id        site    lat   lon total_length_mm total_weight_gr size_class depth_m
#>   <chr>     <chr> <dbl> <dbl>           <dbl>           <dbl> <chr>        <dbl>
#> 1 001-Po-1… Para…  20.5 -87.2             213           113.  large         38.1
#> 2 002-Po-2… Para…  20.5 -87.2             124            27.6 medium        27.9
#> 3 003-Pd-2… Pared  20.5 -87.2             166            52.3 medium        18.5
#> 4 004-Cs-1… Cano…  20.5 -87.2             203           123.  large         15.5
#> 5 005-Cs-1… Cano…  20.5 -87.2             212           129   large         15  
#> 6 006-Pl-2… Paam…  20.5 -87.2             210           139.  large         22.7
#> # ℹ 1 more variable: temperature_C <dbl>

# Now let's build a plot
ggplot(data = EVR628tools::data_lionfish,
       mapping = aes(x = depth_m,
                     y = total_length_mm,
                     size = total_weight_gr,
                     fill = site)) +
  geom_point(shape = 21, color = 1) +
  scale_fill_manual(values = EVR628tools::palette_UM(n = 10)) +
  theme_bw() +
  labs(x = "Depth (m)",
       y = "Total Length (mm)",
       size = "Total Weight (gr)",
       fill = "Site")
Sample figure using data and color palettes from the `EVR628tools` package. The x-axis shows depth of collection (m) and the y-axis shows fish total length (cm). Marker size idnicates the wet weight of the fish, and marker color the site from which it was sampled.

Sample figure using data and color palettes from the EVR628tools package. The x-axis shows depth of collection (m) and the y-axis shows fish total length (cm). Marker size idnicates the wet weight of the fish, and marker color the site from which it was sampled.