File:Half normal pdf.svg
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Original file (SVG file, nominally 640 × 360 pixels, file size: 39 KB)
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Summary
| Description |
English: Probability density function (pdf) of a half-normal random variable with $sigma=1$. |
| Date | |
| Source | Own work |
| Author | Nagelum |
# requires gnuplot 5 or higher
set terminal svg enhanced size 640 360
set samples 1001 # high quality
set border 31 linewidth .3 # thin border
set output "half_normal_pdf.svg"
set notitle
set xrange [-5:5]
set yzeroaxis
set xtics 1
sigma=1.0
# normal density
n(x)=1.0/(sqrt(2.0*pi)*sigma) * exp( -x**2/(2.0*sigma**2) )
# half-normal density
hn(x)= (x<-0.01) ? 0 : (x<0) ? 1/0 : (n(x) + n(-x))
plot hn(x) title "half-normal density" with l lt 2 lw 3 , \
n(x) title "normal density" with l lt 4 lw 2 dt "-"
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:49, 30 April 2017 | | 640 × 360 (39 KB) | Nagelum | User created page with UploadWizard |
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