PolygonNA: Plot a polygon by accounting for NA values (breaks in...

In greenbrown: Land Surface Phenology and Trend Analysis

Description

This function is an improved version of polygon that considers NA values in plotting.

Usage

PolygonNA(x, lower, upper, 
    col = "grey")

Arguments

x	vector of x-values
lower	vector of lower polygon range
upper	vector of upper polygon range
col	color of the polygon

Author(s)

Matthias Forkel <[e-mail]> [aut, cre]

Examples

x <- 1:10
med <- rnorm(length(x))
lower <- med - 2
upper <- med + 2

# example 1: no NA values
plot(x, med, type="l", ylim=range(c(lower, upper), na.rm=TRUE))
PolygonNA(x, lower, upper)
lines(x, med)

# example 2: with some NA values 
lower1 <- lower
upper1 <- upper
lower1[c(1, 6, 10)] <- NA
upper1[c(1:2, 6)] <- NA
plot(x, med, type="l", ylim=range(c(lower, upper), na.rm=TRUE))
PolygonNA(x, lower1, upper1)
lines(x, med)

greenbrown documentation built on Dec. 18, 2020, 3:02 p.m.