File: Standard Normal Distribution.png
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Summary
| Description |
English: The Standard Normal Probability Distribution with shaded regions |
| Date | |
| Source | Own work |
| Author | D Wells |
| Other versions |
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Source code
library(ggplot2)
p <- ggplot(NULL, aes(c(-4,4))) +
geom_line(stat = "function", fun = dnorm) +
geom_area(stat = "function", fun = dnorm, fill = scales::muted("blue"), xlim=c(-1,1), alpha=1/4) +
geom_area(stat = "function", fun = dnorm, fill = scales::muted("blue"), xlim=c(-2,2), alpha=1/4) +
geom_area(stat = "function", fun = dnorm, fill = scales::muted("blue"), xlim=c(-3,3), alpha=1/4) +
theme_minimal() +
theme(axis.text.x = element_text(size = 12)) +
scale_x_continuous(labels = label_units, breaks = -4:4) +
xlab("Standard Deviations from the Mean") +
ylab("Probability Density") +
geom_segment(aes(x=-1, xend=1, y=dnorm(1), yend=dnorm(1)), linetype="dashed") +
geom_segment(aes(x=-2, xend=2, y=dnorm(2), yend=dnorm(2)), linetype="dashed") +
geom_segment(aes(x=-3, xend=3, y=dnorm(3), yend=dnorm(3)), linetype="dashed") +
annotate("text", x = 0, y = dnorm(1)+0.015, label = "68.3%") + #pnorm(1)-pnorm(-1) %
annotate("text", x = 0, y = dnorm(2)+0.015, label = "95.4%") +
annotate("text", x = 0, y = dnorm(3)+0.015, label = "99.7%")
ggsave("Normal_Distribution.png", p, width = 3.7*1.618, height = 3.7, dpi = 1000)
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:25, 24 June 2019 | | 5,986 × 3,700 (752 KB) | wikimediacommons>D Wells | User created page with UploadWizard |
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