hist {terra}

R Documentation

Histogram

Description

Create a histogram of the values of a SpatRaster. For large datasets a sample of maxcell is used.

Usage

## S4 method for signature 'SpatRaster'
hist(x, layer, maxcell=1000000, plot=TRUE, main, ...)

Arguments

x	SpatRaster
layer	integer (or character) to indicate layer number (or name). Can be used to subset the layers to plot in a multilayer SpatRaster
maxcell	integer. To regularly sample very large objects
plot	logical. Plot the histogram or only return the histogram values
main	character. Main title(s) for the plot. Default is the value of names
...	additional arguments. See hist

Value

This function is principally used for plotting a histogram, but it also returns an object of class "histogram" (invisibly if plot=TRUE).

See Also

pairs, boxplot

Examples

Run examples

 
r1 <- r2 <- rast(nrows=50, ncols=50)
values(r1) <- runif(ncell(r1))
values(r2) <- runif(ncell(r1))
rs <- r1 + r2
rp <- r1 * r2

opar <- par(no.readonly =TRUE)
par(mfrow=c(2,2))
plot(rs, main='sum')
plot(rp, main='product')
hist(rs)
a <- hist(rp)
a
x <- c(rs, rp, sqrt(rs))
hist(x)
par(opar)

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