Similar to `lines`

, this function will include
endpoints that are solid points, open points, or arrows (mix-and-match
ready).

## Usage

```
ArrowLines(
x,
y,
lty = 1,
lwd = 2.5,
col = 1,
length = 0.1,
af = 3,
cex.pch = 1.2,
ends = c("a", "a"),
...
)
```

## Arguments

- x
A vector of the x-coordinates of the line to be drawn.

- y
A vector of the y-coordinates of the line to be drawn. This vector should have the same length as that of

`x`

.- lty
The line type.

- lwd
The line width.

- col
The line and endpoint color.

- length
If an end point is an arrow, then this specifies the sizing of the arrow. See the

`length`

argument in the`arrows`

help file for additional details.- af
A tuning parameter for creating the arrow. Usually the default (

`3`

) will work. If no arrow is shown, make this value larger. If the arrow appears to extend off of the line, then specify a smaller value.- cex.pch
Plotting character size (if open or closed point at the end).

- ends
A character vector of length 2, where the first value corresponds to the start of the line and the second to the end of the line. A value of

`"a"`

corresponds to an arrow being shown,`"o"`

to an open circle, and`"c"`

for a closed point.- ...
All additional arguments are passed to the

`lines`

function.

## Examples

```
CCP(xlim = c(-6, 6), ylim = c(-6, 6), ticklabs = 2)
x <- c(-2, 0, 2, 4)
y <- c(0, 3, 0, 3)
ArrowLines(x, y, col = COL[1], ends = c("c", "c"))
points(x, y, col = COL[1], pch = 19, cex = 1.2)
CCP(xlim = c(-6, 6), ylim = c(-6, 6), ticklabs = 2)
x <- c(-3, 0, 1, 3)
y <- c(2, 1, -2, 1)
ArrowLines(x, y, col = COL[1], ends = c("c", "c"))
points(x, y, col = COL[1], pch = 19, cex = 1.2)
CCP(xlim = c(-6, 6), ylim = c(-6, 6), ticklabs = 2)
x <- seq(-2, 2, 0.01)
y <- x^2 - 3
ArrowLines(x, y, col = COL[1], ends = c("c", "c"))
x <- seq(-2, 2, 1)
y <- x^2 - 3
points(x, y, col = COL[1], pch = 19, cex = 1.2)
```