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class-activity3 Zifan #14

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14 changes: 11 additions & 3 deletions class-activity-3.Rmd
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
---
title: "class activity 3"
author: "Charles Lang"
author: "Zifan Cao"
date: "10/2/2018"
output: html_document
---
Expand Down Expand Up @@ -43,13 +43,21 @@ 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}
View(economics_long)
ggplot(economics_long, aes(x=date, y=value01))+
geom_line()+
facet_wrap(~variable)

```

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}

install.packages("tidyverse")
library("tidyverse")
cities<-read.csv("cities.txt", sep="") #read a txt file
troops<-read.csv("troops.txt", sep="")
temps<-read.csv("temps.txt", sep="")
ggplot(cities, aes(long, lat)) +
geom_path(aes(size = survivors, colour =
direction,
Expand All @@ -62,6 +70,6 @@ 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(c(1, 10))
```