Part 60 Linetype scales

Line type is like shape. You can specify line type for discrete and binned variables, but not continuous variables.

You can see a list of R’s built-in line types here. You can refer to line types by number or name.

R’s built-in line types:

Number	Name
0	‘blank’
1	‘solid’
2	‘dashed’
3	‘dotted’
4	‘dotdash’
5	‘longdash’
6	‘twodash’