r语言plot3d的有趣用法
时间: 2023-08-16 17:23:09 浏览: 53
R语言中的plot3d函数可以用来绘制三维图形,包括散点图、曲面图、等高线图等。以下是一些有趣的用法:
1. 绘制三维散点图
```R
library(plot3D)
x <- rnorm(100)
y <- rnorm(100)
z <- rnorm(100)
scatter3D(x, y, z, pch = 16, cex = 2, col = "blue")
```
2. 绘制三维曲面图
```R
library(plot3D)
x <- seq(-10, 10, length = 100)
y <- seq(-10, 10, length = 100)
f <- function(x, y) {sin(sqrt(x^2 + y^2)) / sqrt(x^2 + y^2)}
z <- outer(x, y, f)
persp3D(x, y, z, theta = 30, phi = 30, expand = 0.5, col = "lightblue", border = "black")
```
3. 绘制三维等高线图
```R
library(plot3D)
x <- seq(-10, 10, length = 100)
y <- seq(-10, 10, length = 100)
f <- function(x, y) {sin(sqrt(x^2 + y^2)) / sqrt(x^2 + y^2)}
z <- outer(x, y, f)
contour3D(x, y, z, colvar = z, alpha = 0.8, contour = list(show = TRUE, color = "black"), plane = list(show = TRUE, col = "gray"))
```
这些用法只是冰山一角,plot3d函数还有很多其他有趣的用法,可以根据具体需求进行探索。