Northarrow {StatDA} | R Documentation

## Northarrow

### Description

Add a North Arrow to a map.

### Usage

    Northarrow(Xbottom, Ybottom, Xtop, Ytop, Xtext, Ytext, Alength, Aangle, Alwd,
    Tcex)

### Arguments

`Xbottom` | x coordinate of the first point
`Ybottom` | y coordinate of the first point
`Xtop` | x coordinate of the second point
`Ytop` | y coordinate of the second point
`Xtext` | x coordinate of the label
`Ytext` | y coordinate of the label
`Alength` | length of the edges of the arrow head (in inches)
`Aangle` | angle from the shaft of the arrow to the edge of the arrow head
`Alwd` | The line width, a positive number
`Tcex` | numeric character expansion factor

### Author(s)

Peter Filzmoser <P.Filzmoser@tuwien.ac.at>

### References

C. Reimann, P. Filzmoser, R.G. Garrett, and R. Dutter: Statistical Data Analysis Explained. Applied Environmental Statistics with R. John Wiley and Sons Inc. To appear.

### Examples

    plot.new()
    Northarrow(0.5,0,0.5,1,0.5,0.5,Alength=0.15,Aangle=15,Alwd=2,Tcex=2)

[Package StatDA version 1.0 Index]