Hadley Wickham's 'dplyr' tutorial at useR 2014 (2/2)

preview_player
Показать описание
Part 2/2 of the dplyr workshop held at UCLA during the useR 2014 conference.

dplyr is the premier data manipulation tool for data analysts who work in the R language. This package makes it easier than ever to sort, manage, and clean your dirty data with speed and efficiency.

topics covered: Grouped Mutate/Filter, Joins, Do, Databases

  1. Real Data Science USA (formerly DataScience.LA)
  2. Hadley Wickham
  3. Software (Industry)
  4. data
Рекомендации по теме
Hadley Wickham's 'dplyr' 0:53:27

Hadley Wickham's 'dplyr' tutorial at useR 2014 (1/2)

Hadley Wickham's 'dplyr' 0:40:44

Hadley Wickham's 'dplyr' tutorial at useR 2014 (2/2)

Hadley Wickham: Managing 1:09:38

Hadley Wickham: Managing many models with R

Hands-on dplyr tutorial 0:38:57

Hands-on dplyr tutorial for faster data manipulation in R

Hadley Wickham | 0:17:59

Hadley Wickham | An introduction to R7 | RStudio (2022)

Hadley Wickham | 0:22:17

Hadley Wickham | vctrs Tools for making size and type consistent functions | RStudio (2019)

[DSC 4.0] What 0:46:52

[DSC 4.0] What Makes a Good Function - Hadley Wickham keynote

Tidy evaluation in 0:05:59

Tidy evaluation in 5 mins

PLOTCON 2016: Hadley 0:30:05

PLOTCON 2016: Hadley Wickham, New open viz in R

Episode 450: Hadley 0:51:18

Episode 450: Hadley Wickham on R and Tidyverse

Hands on dplyr 1:00:32

Hands on dplyr Tutorial for Data Manipulation

Hadley Wickham 'Data 0:47:24

Hadley Wickham 'Data Science with R'

Going deeper with 0:36:54

Going deeper with dplyr: New features in 0.3 and 0.4 (tutorial)

'The Joy of 0:59:58

'The Joy of Functional Programming (for Data Science)' with Hadley Wickham

Hadley Wickham - 0:41:19

Hadley Wickham - R in Production

EMBL Keynote Lecture 0:50:53

EMBL Keynote Lecture - Data visualization and data science, Hadley Wickham

Advanced R Book 0:50:56

Advanced R Book Club: Object oriented programming intro (advr05 12)

An evening with 0:43:19

An evening with Hadley Wickham

Graphical inference 0:00:19

Graphical inference

R Meetup - 1:23:54

R Meetup - Hadley Wickham and Joe Cheng of RStudio return to BARUG.

Hadley Wickham, RStudio 1:04:12

Hadley Wickham, RStudio Scientist & open source pioneer, on data, stats, & philosophy

HITS Colloquium: Hadley 1:02:29

HITS Colloquium: Hadley Wickham on Data Science Challenges

dplyr tutorial (Part 0:20:14

dplyr tutorial (Part 1)

Hadley Wickham – 1:15:19

Hadley Wickham – “You can't do data science in a GUI”

Комментарии
Автор

dropbox does not work, i also could not find the airports dataset.

ondrejplachy
Автор

Darn.  Ignore second problem. User error.  Very sorry I posted before checking more carefully.

sethchandler
Автор

Excited about this video but I am having two initial problems.  The nycflights2013 data.frame does not have a plane column.  It has a tailnum colum, which appears to be the same thing, but some renaming needs to be done.  Also, when I run the code at 1:30 I get an error "Error in n() : This function should not be called directly"  I'm not sure what this is about.  I am running R 3.1.1 in RStudio 0.98.1028 on OSX .

sethchandler
Автор

I think the z score part is not correct.
Should be like this:
planes_z <- flights %>%
filter(!is.na(arr_delay)) %>%
group_by(plane) %>%
filter(n() >30) %>%
mutate(z_delay =
(arr_delay - mean (arr_delay))/sd(arr_delay)) %>%
filter(z_delay >=3) %>%
select(plane, z_delay) %>%
arrange(desc(z_delay))
View(planes_z)

zakkyang