Math-methods {raster} | R Documentation

## Mathematical functions

### Description

Generic mathematical functions that can be used with a Raster* object as argument:

`"abs", "sign", "sqrt", "ceiling", "floor", "trunc", "cummax", "cummin",`

`"cumprod", "cumsum", "log", "log10", "log2", "log1p", "acos", "acosh", "asin",`

`"asinh", "atan", "atanh", "exp", "expm1", "cos", "cosh", "sin", "sinh", "tan", "tanh"`.

### Note

You can use the, somewhat more flexible, function `calc` instead of the Math-methods.

### See Also

`Arith-methods`, `calc`, `overlay`, `atan2`

### Examples

    r1 <- raster(nrow=10, ncol=10)
    r1 <- setValues(r1, runif(ncell(r1)) * 10)
    r2 <- sqrt(r1)
    s <- stack(r1, r2) - 5
    b <- abs(s)

[Package raster version 2.5-2 Index]