crosstab: Cross-tabulate

In terra: Spatial Data Analysis

Cross-tabulate

Description

Cross-tabulate the layers of a SpatRaster to create a contingency table.

Usage

## S4 method for signature 'SpatRaster,missing'
crosstab(x, digits=0, long=FALSE, useNA=FALSE)

Arguments

x	SpatRaster
digits	integer. The number of digits for rounding the values before cross-tabulation
long	logical. If TRUE the results are returned in 'long' format data.frame instead of a table
useNA	logical, indicting if the table should includes counts of NA values

Value

A table or data.frame

See Also

freq, zonal

Examples

r <- s <- rast(nc=5, nr=5)
set.seed(1)
values(r) <- runif(ncell(r)) * 2
values(s) <- runif(ncell(r)) * 3
x <- c(r, s)

crosstab(x)

rs <- r/s
r[1:5] <- NA
s[20:25] <- NA
x <- c(r, s, rs)
crosstab(x, useNA=TRUE, long=TRUE)

terra documentation built on Oct. 13, 2023, 5:08 p.m.