plot_curvefits: plot_curvefits

In phenofit: Extract Remote Sensing Vegetation Phenology

Description

plot_curvefits

Usage

plot_curvefits(
  d_fit,
  seasons,
  d_obs = NULL,
  title = NULL,
  xlab = "Time",
  ylab = "Vegetation Index",
  yticks = NULL,
  font.size = 14,
  theme = NULL,
  cex = 2,
  shape = "point",
  angle = 30,
  show.legend = TRUE,
  layer_extra = NULL,
  ...
)

Arguments

d_fit	data.frame of curve fittings returned by get_fitting().
seasons	Growing season dividing object returned by season() and season_mov().
d_obs	data.frame of original vegetation time series, with the columns of t, y and QC_flag. If not specified, it will be determined from d_fit.
title	String, title of figure.
xlab, ylab	String, title of xlab and ylab.
yticks	ticks of y axis
font.size	Font size of axis.text
theme	ggplot theme
cex	point size for VI observation.
shape	the shape of input VI observation? line or point
angle	text.x angle
show.legend	Boolean
layer_extra	(not used) extra ggplot layers
...	ignored

Examples

data("CA_NS6")
d = CA_NS6

nptperyear <- 23
INPUT <- check_input(d$t, d$y, d$w, QC_flag = d$QC_flag,
     nptperyear = nptperyear, south = FALSE,
     maxgap = nptperyear/4, alpha = 0.02, wmin = 0.2)
# plot_input(INPUT)

# Rough fitting and growing season dividing
wFUN <- "wTSM"
brks2 <- season_mov(INPUT,
    options = list(
        rFUN = smooth_wWHIT, wFUN = wFUN,
        r_min = 0.05, ypeak_min = 0.05,
        lambda = 10,
        verbose = FALSE
    ))
# plot_season(INPUT, brks2, d)
# Fine fitting
fit <- curvefits(
    INPUT, brks2,
    options = list(
        methods = c("AG", "Beck", "Elmore", "Zhang"), #,"klos", "Gu"
        wFUN = wFUN,
        nextend = 2, maxExtendMonth = 2, minExtendMonth = 1, minPercValid = 0.2
    )
)

r_param = get_param(fit)
r_pheno = get_pheno(fit)
r_gof = get_GOF(fit)
d_fit = get_fitting(fit)

g <- plot_curvefits(d_fit, brks2)
grid::grid.newpage(); grid::grid.draw(g)

phenofit documentation built on Oct. 15, 2021, 5:09 p.m.