seasplot: Plot seasonal trends across all years

In WRTDStidal: Weighted Regression for Water Quality Evaluation in Tidal Waters

Plot seasonal trends across all years

Description

Plot seasonal trends by combining annual data

Usage

seasplot(dat_in, ...)

## S3 method for class 'tidal'
seasplot(
  dat_in,
  tau = NULL,
  predicted = TRUE,
  span = 0.4,
  lwd = 1,
  size = 2,
  alpha = 1,
  col_vec = NULL,
  grids = TRUE,
  logspace = TRUE,
  ...
)

## S3 method for class 'tidalmean'
seasplot(
  dat_in,
  predicted = TRUE,
  span = 0.4,
  lwd = 1,
  size = 2,
  alpha = 1,
  col_vec = NULL,
  grids = TRUE,
  logspace = TRUE,
  ...
)

Arguments

dat_in	Input data object
...	arguments passed to other methods
tau	numeric of quantile to plot
predicted	logical indicating if seasonal smooth is based on model predictions, default TRUE, otherwise the smooth is based on flow-normalized predictions
span	numeric indicating the smoothing parameter for the loess fit, passed to stat_smooth
lwd	numeric value indicating width of lines
size	numeric value indicating size of points
alpha	numeric value indicating transparency of points or lines
col_vec	chr string of plot colors to use, passed to gradcols. Any color palette from RColorBrewer can be used as a named input. Palettes from grDevices must be supplied as the returned string of colors for each palette.
grids	logical indicating if grid lines are present
logspace	logical indicating if plots are in log space

Details

Seasonal variation across all years can be viewed by showing the observed annual data on a common y-axis. The year value is removed from the results such that the y-axis shows only the day of the year. A simple loess (locally estimated) polynomial smooth is added to show the seasonal trend in the results, where the smoother is fit through the model results for the observed data. The fit can be smoothed through the model predictions or the flow-normalized predictions, neither of which are shown on the plot.

See Also

dynaplot, fitmoplot, gridplot, and sliceplot produce similar graphics except variation in the same month across years is emphasized.

Examples

# load a fitted tidal object
data(tidfit)

# plot using defaults
# defaults to all quantiles for tidal object
seasplot(tidfit)

# tidalmean object
seasplot(tidfitmean)

WRTDStidal documentation built on Oct. 20, 2023, 5:08 p.m.