clamp_ts: clamp time series data

In terra: Spatial Data Analysis

clamp time series data

Description

clamp time-series datat that are S shaped. The value in layers before the minimum value in a cell can be set to that minimum value, and the value in layers after the maximum value for a cell can be set to that maximum value.

Usage

## S4 method for signature 'SpatRaster'
clamp_ts(x, min=FALSE, max=TRUE, filename="", ...)

Arguments

x	SpatRaster
min	logical. If TRUE the time-series is clamped to the minimum value
max	logical. If TRUE the time-series is clamped to the maximum value
filename	character. Output filename
...	additional arguments for writing files as in writeRaster

Value

SpatRaster

See Also

clamp, cummin, cummax

Examples

sigm <- function(x) { .8 / (1 + exp(-(x-10))) + runif(length(x))/4 }
r <- rast(ncols=10, nrows=10, nlyr=50)
s <- seq(5.2, 15,.2)
set.seed(1)
values(r) <- t(replicate(100, sigm(s)))

x <- clamp_ts(r, TRUE, TRUE) 

plot(unlist(r[4]))
lines(unlist(x[4]))

terra documentation built on Oct. 14, 2024, 5:07 p.m.