h2-cursus.Rmd

---
title: "Analyse op 1 variabele"
output: pdf_document
---

## 2.11.4 Grafieken

```{r}
android_cpu <- read.csv("data/android_persistence_cpu.csv", sep = ";", dec = ",")
attach(android_cpu)
```

### Histogram

```{r}
hist(android_cpu$Tijd, main = "Tijd", xlab = "CPU tijd")
hist(android_cpu$Tijd, main = "Tijd", xlab = "CPU tijd", breaks = 2)
```

### Boxplot

```{r}
boxplot(android_cpu$Tijd, main = "Spreiding CPU Tijd", xlab = "Tijd (ms)")
boxplot(android_cpu$Tijd~android_cpu$Datahoeveelheid, main = "Spreiding CPU Tijd <-> # Data", ylab = "Tijd (ms)")
```