Created
December 6, 2024 07:13
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base's `persp` and `contour` example
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| x = seq(-4,4,length.out=100) | |
| y = seq(-4,4,length.out=100) | |
| df <- expand.grid(x = x, y = y) | |
| prob <- matrix(pnorm(df$x)*pnorm(df$y), 100, 100) | |
| #png("persp.png") | |
| persp(x = x, y = y, z = prob, theta = 20, phi=45) | |
| #dev.off() | |
| #png("contour.png") | |
| contour(x = x, y = y, z = prob) | |
| #dev.off() |
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