rotate_coords: Perform a mathematical rotation about (0, 0) of coordinates. This rotation is
given as x' = x \* cos(theta) - y \* sin(theta) y' = x \* sin(theta) + y \*
cos(theta)
Description
Perform a mathematical rotation about (0, 0) of coordinates. This rotation is
given as x' = x \* cos(theta) - y \* sin(theta) y' = x \* sin(theta) + y \*
cos(theta)
Usage
rotate_coords(df, angle = 90)
Value
The rotated data frame
Arguments
df
The data frame to rotate. It must have x and y
columns
angle
the angle (in degrees) through which to rotate the coordinates