- Taxonomy of Data
- Dataframe
- Unit of observation is in each row
- Variable is in each column
- Values are in the cells
- Taxonomy of Data Types in R
- Reproducible workflows
- Markdown + R
- Console
- Environment
- Editor
- File Directory
- Printing to the console vs saving to the environment
- R scripts as final draft of code, console as the sandbox
- R Markdown as a reproducible version of Word + Excel -R Markdown knits in a fresh empty environment, not in the one you see in your environment pane
-
+,-,*,/,^ -
<- -
? -
library(tidyverse) -
c() -
class() -
sum() -
mean() -
data() -
tibble() -
select() -
arrange() -
mutate() -
count()