R: Crossing Point

crossing.point {swfscMisc} | R Documentation

## Crossing Point

### Description

Return point where two lines cross

### Usage

    crossing.point(l1, l2)

### Arguments

`l1, l2` | matrices representing two lines, where first two columns are x and y values respectively

### Value

a data.frame of x and y values of points where lines cross

### Author(s)

Eric Archer eric.archer@noaa.gov

### Examples

    x <- 1:100
    line1 <- cbind(x, 3 + 3 * x)
    line2 <- cbind(x, 10 - 3 * x)
    plot(line1[, 1], line1[, 2], type = "l", col = "red")
    lines(line2[, 1], line2[, 2], col = "blue")
    cr.pt <- crossing.point(line1, line2)
    print(cr.pt)

[Package swfscMisc version 1.2 Index]