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Biweight.png (480 × 480 pixels, file size: 1 KB, MIME type: image/png)
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Summary
English: This image is an example of a Tukey biweight function. It was created under R by the following code:
f = function(x, c) {
if (abs(x) < c) {
return(x*((1-(x/c)^2))^2)
}
else {
return(0)
}
}
x= (-1000:1000)/100
y[1] = f(x[1], 3)
for (i in x[-1]) {y = c(y, f(i, 3))}
jpeg(filename = "biweight.jpg", width = 480, height = 480)
plot(x, y, type="l", col=2)
dev.off()
| Description | |||
| Date | |||
| Source | w:Image:Biweight.jpg | ||
| Author | wikipedia:en:user:Deimos 28 | ||
| Permission (Reusing this file) |
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| Other versions | w:Image:Biweight.jpg |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:27, 26 October 2006 | | 480 × 480 (1 KB) | Helix84 | == Summary == {{en|This image is an example of a Tukey biweight function. It was created under R by the following code:}} <code> f = function(x, c) { if (abs(x) < c) { return(x*((1-(x/c)^2))^2) } else { return(0) } } x= ( |
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