chronosphere (version 0.4.1)

matchtime: Match the dates of a time-dependent variable with a predefined vector

Description

The function takes a variable x (e.g. a vector or a RasterArray object), and reorders it to best match the dates provided in a vector y.

Usage

matchtime(x, y, ...)
# S4 method for numeric
matchtime(x, y, index = FALSE, ...)
# S4 method for character
matchtime(x, y, index = FALSE, ...)
# S4 method for RasterArray
matchtime(x, y, index = FALSE, time = 1, ...)

Value

An object of the class as x or a numeric vector.

Arguments

x

Object to be reordered to match y.

y

(numeric) The vector of dates (numeric values) to order to.

...

Additional arguments passed to class-specific methods.

index

(logical) If this argument is TRUE, only the indices will be returned that refer to the new order, rather than the reordered x variable.

time

numeric. Single value referring to that dimension of x where the time-coding names are (time=1 is the default for RasterArrays in chronosphere).

Examples

# original vector
orig <- 1:10
# target values
targ <- c(5.1,4.2, 3.4, 2.7, 2.3)
# how do the two series match the best?
matchtime(orig, targ)