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Class Activity 3-Yiwen #2

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13 changes: 10 additions & 3 deletions class-activity-3.Rmd
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Original file line number Diff line number Diff line change
@@ -1,13 +1,13 @@
---
title: "class activity 3"
author: "Charles Lang"
author: "Yiwen Ma"
date: "10/2/2018"
output: html_document
---

#Mapping aesthetic to data to = layer
```{r}
install.packages("ggplot2")
# install.packages("ggplot2")
library(ggplot2)

ggplot(diamonds, aes(x = price, y = carat)) +
Expand Down Expand Up @@ -43,13 +43,20 @@ ggplot(mpg, aes(displ, hwy, color = class)) +
Can you create a line graph using the "economics_long" data set that shows change over time in "value01" for different categories of "variable"?

```{r}
economics_long
ggplot(economics_long, aes(date,value01, color = variable))+
geom_line()


```

If you would like to recreate the Minard graphic of Napoleon's Troops the code is below and the data is in this repo.

```{r}

cities <- read.table("cities.txt", header = TRUE)
temps <- read.table("temps.txt",header = TRUE)
troops <- read.table("troops.txt",header = TRUE)
ggplot(cities, aes(long, lat)) +
geom_path(aes(size = survivors, colour =
direction,
Expand All @@ -62,6 +69,6 @@ last_plot() +
scale_x_continuous("", limits = c(24, 39)) +
scale_y_continuous("") +
scale_colour_manual(values = c("grey50","red")) +
scale_size(to = c(1, 10))
scale_size(range = c(1, 10))
```

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