Publications by Joey Campbell
twocats19_demo
suppressPackageStartupMessages(library("tidyverse")) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library("nycflights13")) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 #These additional package provide functions that will be used in answering some questions. suppressPackageStart...
7308 sym R (1648 sym/11 pcs) 5 img
edacovar18_demo
suppressPackageStartupMessages(library("tidyverse")) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library("nycflights13")) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 #These additional package provide functions that will be used in answering some questions suppressPackageStartu...
17583 sym R (2910 sym/28 pcs) 18 img
eda16_demo
suppressPackageStartupMessages(library("tidyverse")) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. Explore the distribution of each of the x, y, and z variables in diamonds. What do you learn? Think about a diamond and how you might decide which dimension is the length, width, and depth. First, I’ll calculate summary statist...
15942 sym R (2903 sym/28 pcs) 16 img
groupmutate14_demo
suppressPackageStartupMessages(library(nycflights13)) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1.Refer back to the lists of useful mutate and filtering functions. Describe how each operation changes when you co...
41835 sym R (7018 sym/43 pcs) 5 img
workflow_scripts15_demo
1. Go to the RStudio Tips twitter account, https://twitter.com/rstudiotips and find one tip that looks interesting. Practice using it! The current timeline of [@rstudiotips](https://twitter.com/rstudiotips) is displayed below. Tweets by rstudiotips 2.What other common mistakes will RStudio diagnostics report? Read https://support.rstudio.com/hc/...
2126 sym
groupsum13_demo
suppressPackageStartupMessages(library(nycflights13)) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. Brainstorm at least 5 different ways to assess the typical delay characteristics of a group of flights. Consider...
19015 sym R (2683 sym/21 pcs) 3 img
newvar_mutate12_demo
suppressPackageStartupMessages(library(nycflights13)) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. Currently dep_time and sched_dep_time are convenient to look at, but hard to compute with because they’re not ...
28454 sym R (4628 sym/57 pcs) 3 img
select11_demo
suppressPackageStartupMessages(library(nycflights13)) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. Brainstorm as many ways as possible to select dep_time, dep_delay, arr_time, and arr_delay from flights. These a...
11720 sym R (1066 sym/20 pcs)
arrange10_demo
suppressPackageStartupMessages(library(nycflights13)) package 㤼㸱nycflights13㤼㸲 was built under R version 3.6.3 suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. How could you use arrange() to sort all missing values to the start? (Hint: use is.na()). The arrange() function...
8211 sym R (734 sym/15 pcs)
workflow_basics08_demo
suppressPackageStartupMessages(library(tidyverse)) package 㤼㸱tidyverse㤼㸲 was built under R version 3.6.3 1. Why does this code not work? #my_variable <- 10 #my_varıable #> Error in eval(expr, envir, enclos): object 'my_varıable' not found The variable being printed is my_varıable, not my_variable: the seventh character is “ı” (...
7618 sym R (710 sym/10 pcs) 1 img