.Rhistory

mtcars
head(mtcars)
# Chunk 1: setup
library(knitr)
opts_chunk$set(echo=TRUE, warning=FALSE, message=FALSE)
internet <- TRUE
if(internet) {
huron.url <- "https://github.com/JVAdams/vizzy/raw/master/Huron0610.RData"
load(url(huron.url))
} else {
huron <- "C:/JVA/GitHub/vizzy/Huron0610.RData"
load(huron)
}
ls()
optrcat
optrop
head(optrop)
optrcat
head(optrcat)
library(nycflights13)
install.packages("nycflights13")
library(nycflights13)
flights
head(flights)
flights
?filter
?tidyverse::filter
filter
library(tidyverse
)
?filter
names(flights)
flight
flights
View(flights)
filter(flights, month == 1, day == 1)
filter(flights, month == 11 | month == 12)
filter(flights, dep_time<3)
filter(flights, dep_time<300)
hist(flights$dep_delay)
1400/60
names(flights)
select(flights, year, month, day, Airline=carrier)
?flights