Aesthetic Mapping in ggplot2 - English

Questions posted on ST Forums:

• NULL on levels(movies$mpaa_rating)

  levels(movies$mpaa_rating) - on executing this statement getting as:-str(movies$mpaa_rating) chr [1:600] "R" "PG-13" "R" "PG" "R" "Unrated" "PG-13" "R" ...> levels(movies$mpaa_rating)NULLPlease let me know what to do correction

  00-01M 0-10S varshapalatse@gmail.com
  
  
  Answer last updated on: May 15, 2020, 3:58 p.m.

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• How to add car names on axis?

  I want to add car names on x axis in bargraph.How to do that ?

  08-09M 30-40S Joohi
  
  
  Answer last updated on: March 15, 2021, 5:01 p.m.

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• I am getting different result while using str() and levels() commands

  I am getting different results compared to those of tutorial video while using str(movies$mpaa_rating) and levels(movies$mpaa_rating) commands. script:- # Declare a variable to read and store moviesData  movies <- read.csv("moviesData.csv")# View movies data frame View(movies)# Plot critics_score and audience_score ggplot(data = movies,        mapping = aes(x = critics_score,                      y = audience_score,                     color = genre)) +  geom_point()str(movies$mpaa_rating)levels(movies$mpaa_rating)console:-> # Load ggplot2  > library(ggplot2)> # Clear R workspace> rm(list = ls() ) > # Declare a variable to read and store moviesData  > movies <- read.csv("moviesData.csv")> # View movies data frame > View(movies)> # Plot critics_score and audience_score > ggplot(data = movies, +        mapping = aes(x = critics_score, +                      y = audience_sco .... [TRUNCATED] > # Plot critics_score and audience_score > ggplot(data = movies, +        mapping = aes(x = critics_score, +                      y = audience_score,+                      color = genre)) ++   geom_point()> str(movies$mpaa_rating) chr [1:600] "R" "PG-13" "R" "PG" "R" ...> levels(movies$mpaa_rating)NULL> str(movies$mpaa_rating) chr [1:600] "R" "PG-13" "R" "PG" "R" ...> levels(movies$mpaa_rating)NULL

  04-05M 40-50S Loki_Rajasthani
  
  
  Answer last updated on: Jan. 29, 2021, 1:24 p.m.

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• str and levels command

  On applying the following commands -str(movies$mpaa_rating)level(movies$mpaa_rating)the output is not showing levels-> str(movies$mpaa_rating) chr [1:600] "R" "PG-13" "R" "PG" "R" "Unrated" "PG-13" "R" "Unrated" "Unrated" "PG" ...> levels(movies$mpaa_rating)NULL> 

  04-05M 40-50S Joohi
  
  
  Answer last updated on: Dec. 14, 2020, 4:51 p.m.

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• Use of + sign

  What is the use of '+' after the ggplot(data=......)?

  04-05M 20-30S SUBHO98
  
  
  Answer last updated on: May 1, 2020, 4 p.m.

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• How to give different colors or pictures?

  \n\n\n\t\n\t\n\t\n\tp { margin-bottom: 0.25cm; line-height: 120%; }\n\n\nHow can we give our\nchoice colors to plots and bars?\nCan we fill bars\nwith different styles as dots, pictures?\n\n\n\n\n

  01-02M 50-60S amruta11
  
  
  Answer last updated on: Nov. 23, 2019, 9:11 a.m.

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• how to make 3 D Graph in R tool .

  How to make 3 D Graph in R what package are require . 

  04-05M 10-20S devendrasinghkaushal
  
  
  Answer last updated on: Nov. 9, 2019, 2:44 p.m.

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