I tried to convert the month variable (which is an integer) into a categorical variable using factor(month), but I failed because of the error. How could I solve it?
This is my code:
library(tidyverse)
library(dplyr)
install.packages("nycflights13")
library(nycflights13)
month_new <- flights$month
month_new
flights %>%
filter(dest == "HNL", air_time > 10) %>%
factor(month_new) %>%
ggplot(x = month_new) + geom_bar()
Your assignment factor(month_new)
does not work. I suggest mutate(month = as.factor(month))
and there is no aesthetics aes
library(tidyverse)
#install.packages("nycflights13")
library(nycflights13)
flights %>%
filter(dest == "HNL", air_time > 10) %>%
mutate(month = as.factor(month)) %>%
ggplot(aes(x = month)) +
geom_bar()
or:
library(tidyverse)
#install.packages("nycflights13")
library(nycflights13)
flights %>%
filter(dest == "HNL", air_time > 10)
ggplot(flights, aes(x=factor(month)))+
geom_bar(fill="steelblue")+
theme_minimal()