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c4f342ae5e5291c5f1e720fbecb42719
mooc-rr
Commits
03c09661
Commit
03c09661
authored
Feb 06, 2023
by
c4f342ae5e5291c5f1e720fbecb42719
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very last one, I hope... Pi
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b6a77818
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toy_document_fr.Rmd
module2/exo1/toy_document_fr.Rmd
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module2/exo1/toy_document_fr.Rmd
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03c09661
...
@@ -37,8 +37,12 @@ df = data.frame(X = runif(N), Y = runif(N))
...
@@ -37,8 +37,12 @@ df = data.frame(X = runif(N), Y = runif(N))
df$Accept = (df$X**2 + df$Y**2 <=1)
df$Accept = (df$X**2 + df$Y**2 <=1)
library(ggplot2)
library(ggplot2)
ggplot(df, aes(x=X,y=Y,color=Accept)) + geom_point(alpha=.2) + coord_fixed() + theme_bw()
ggplot(df, aes(x=X,y=Y,color=Accept)) + geom_point(alpha=.2) + coord_fixed() + theme_bw()
```
```
Il est alors aisé d'obtenir une approximation (pas terrible) de $\pi$ en comptant combien de fois, en moyenne, $X^2 + Y^2$ est inférieur à 1 :
Il est alors aisé d'obtenir une approximation (pas terrible) de $\pi$ en comptant combien de fois, en moyenne, $X^2 + Y^2$ est inférieur à 1 :
```{r}
```{r}
4*mean(df$Accept)
4*mean(df$Accept)
```
```
\ No newline at end of file
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