transform.sf {sf}

R Documentation

transform method for sf objects

Description

Can be used to create or modify attribute variables; for transforming geometries see st_transform, and all other functions starting with st_.

Usage

## S3 method for class 'sf'
transform(`_data`, ...)

Arguments

_data	object of class sf
...	Further arguments of the form new_variable = expression

Examples

Run examples

a = data.frame(x1 = 1:3, x2 = 5:7)
st_geometry(a) = st_sfc(st_point(c(0,0)), st_point(c(1,1)), st_point(c(2,2)))
transform(a, x1_sq = x1^2)
transform(a, x1_x2 = x1*x2)

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