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When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
This code will tell you the GDP Per Cap a year for each country. The X axis is the year and the Y axis is the GDP PerCap.
summary(cars)
## speed dist
## Min. : 4.0 Min. : 2.00
## 1st Qu.:12.0 1st Qu.: 26.00
## Median :15.0 Median : 36.00
## Mean :15.4 Mean : 42.98
## 3rd Qu.:19.0 3rd Qu.: 56.00
## Max. :25.0 Max. :120.00
You can also embed plots, for example:
Note that the echo = FALSE parameter was added to the
code chunk to prevent printing of the R code that generated the
plot.
selected_countries <- subset(gapminder, country %in% c("United States", "Germany", "Japan"))
ggplot(selected_countries, aes(x= year, y = gdpPercap, color = country)) +
geom_line() +
labs(title = "GPD PerCap",
x = "Year",
y = "GDP PerCap",
color = "Country")