Plot monthly chlorophyll or light attenuation values for a segment

Plot monthly chlorophyll or light attenuation values for a bay segment

Usage

show_boxplot(
  epcdata,
  param = c("chla", "la"),
  yrsel = NULL,
  yrrng = c(1975, 2024),
  ptsz = 0.5,
  bay_segment = c("OTB", "HB", "MTB", "LTB"),
  trgs = NULL,
  family = "sans",
  labelexp = TRUE,
  txtlab = TRUE,
  partialyr = FALSE,
  points = TRUE
)

Arguments

epcdata

data frame of epc data returned by read_importwq

param

chr string for which parameter to plot, one of "chla" for chlorophyll or "la" for light attenuation

yrsel

numeric for year to emphasize, shown as separate red points on the plot

yrrng

numeric vector indicating min, max years to include

ptsz

numeric indicating point size of observations not in yrsel

bay_segment

chr string for the bay segment, one of "OTB", "HB", "MTB", "LTB"

trgs

optional data.frame for annual bay segment water quality targets, defaults to targets

family

optional chr string indicating font family for text labels

labelexp

logical indicating if y axis and target labels are plotted as expressions, default TRUE

txtlab

logical indicating if a text label for the target value is shown in the plot

partialyr

logical indicating if incomplete annual data for the most recent year are approximated by five year monthly averages for each parameter

points

logical indicating if jittered point observations, including outliers, are shown in the plot

Value

A ggplot object

Details

Points not included in yrsel are plotted over the box plots using position_jitter. Use ptsz = -1 to suppress. The dotted line in the plot shows the large exceedance value.

Examples

show_boxplot(epcdata, bay_segment = 'OTB')