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3359040c8c030c1d84c490c9f01f6282
mooc-rr
Commits
5c955cc1
Commit
5c955cc1
authored
Jun 10, 2021
by
David Rei
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maj exo5
parent
25a572b4
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exo5_fr.Rmd
module2/exo5/exo5_fr.Rmd
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module2/exo5/exo5_fr.Rmd
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5c955cc1
...
@@ -28,6 +28,7 @@ Nous commençons donc par charger ces données:
...
@@ -28,6 +28,7 @@ Nous commençons donc par charger ces données:
```{r}
```{r}
data = read.csv("shuttle.csv",header=T)
data = read.csv("shuttle.csv",header=T)
data2 = read.csv("shuttle.csv",header=T)
data2 = read.csv("shuttle.csv",header=T)
dataClean = read.csv("shuttle.csv",header=T)
data
data
```
```
...
@@ -57,7 +58,9 @@ simplifier l'analyse.
...
@@ -57,7 +58,9 @@ simplifier l'analyse.
Comment la fréquence d'échecs varie-t-elle avec la température ?
Comment la fréquence d'échecs varie-t-elle avec la température ?
```{r}
```{r}
plot(data=data, Malfunction/Count ~ Temperature, ylim=c(0,1))
plot(data=data, Malfunction/Count ~ Temperature, ylim=c(0,1))
plot(data=dataClean, Malfunction/Count ~ Temperature, ylim=c(0,1))
plot(data=data, Pressure ~ Temperature, ylim=c(0,200))
plot(data=data, Pressure ~ Temperature, ylim=c(0,200))
plot(data=dataClean, Pressure ~ Temperature, ylim=c(0,200))
plot(data=data2, Pressure ~ Temperature, ylim=c(0,200), xlim=c(60, 85))
plot(data=data2, Pressure ~ Temperature, ylim=c(0,200), xlim=c(60, 85))
```
```
...
@@ -79,6 +82,10 @@ régression logistique.
...
@@ -79,6 +82,10 @@ régression logistique.
logistic_reg = glm(data=data, Malfunction/Count ~ Temperature, weights=Count,
logistic_reg = glm(data=data, Malfunction/Count ~ Temperature, weights=Count,
family=binomial(link='logit'))
family=binomial(link='logit'))
summary(logistic_reg)
summary(logistic_reg)
logistic_reg2 = glm(data=data2, Malfunction/Count ~ Temperature, weights=Count,
family=binomial(link='logit'))
summary(logistic_reg2)
```
```
L'estimateur le plus probable du paramètre de température est 0.001416
L'estimateur le plus probable du paramètre de température est 0.001416
...
@@ -97,6 +104,7 @@ tempv = seq(from=30, to=90, by = .5)
...
@@ -97,6 +104,7 @@ tempv = seq(from=30, to=90, by = .5)
rmv <- predict(logistic_reg,list(Temperature=tempv),type="response")
rmv <- predict(logistic_reg,list(Temperature=tempv),type="response")
plot(tempv,rmv,type="l",ylim=c(0,1))
plot(tempv,rmv,type="l",ylim=c(0,1))
points(data=data, Malfunction/Count ~ Temperature)
points(data=data, Malfunction/Count ~ Temperature)
```
```
Comme on pouvait s'attendre au vu des données initiales, la
Comme on pouvait s'attendre au vu des données initiales, la
...
...
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