agg {rainfarmr}

Aggregation using box-averaging

Description

Aggregates an input field z to an array at coarser resolutions c(nas,nas) by box averaging. The input array can contain missing values.

Usage

agg(z, nas)

Arguments

z

matrix containing the fine field to aggregate.

nas

target dimension for the output field.

Value

The coarse field obtained by box averaging.

Author(s)

Jost von Hardenberg, [e-mail]

Examples

z <- rnorm(64 * 64)
dim(z) <- c(64, 64)
za <- agg(z, 4)
dim(za)
# [1] 4 4