Quarto Presentation – Starter Example

INTRODUCTION

• This is an introduction to creating presentation output using Quarto
  
• Notice how headers are used to create pages of content
  
• This is just a simple example - we will improve on the design and flow throughout the semester
  
• Use the CRISP-DM Model to create a relevant story line
  

Data Understanding

• We will use the Titanic dataset for our analysis
  
• The dataset has information on all 1309 passengers aboard the Titanic when it sank in April 1912
  
• The dataset has the following variables
  

'data.frame':   1309 obs. of  12 variables:
 $ PassengerId: int  1 2 3 4 5 6 7 8 9 10 ...
 $ Survived   : int  0 1 1 1 0 0 0 0 1 1 ...
 $ Pclass     : int  3 1 3 1 3 3 1 3 3 2 ...
 $ Name       : chr  "Braund, Mr. Owen Harris" "Cumings, Mrs. John Bradley (Florence Briggs Thayer)" "Heikkinen, Miss. Laina" "Futrelle, Mrs. Jacques Heath (Lily May Peel)" ...
 $ Sex        : chr  "male" "female" "female" "female" ...
 $ Age        : num  22 38 26 35 35 NA 54 2 27 14 ...
 $ SibSp      : int  1 1 0 1 0 0 0 3 0 1 ...
 $ Parch      : int  0 0 0 0 0 0 0 1 2 0 ...
 $ Ticket     : chr  "A/5 21171" "PC 17599" "STON/O2. 3101282" "113803" ...
 $ Fare       : num  7.25 71.28 7.92 53.1 8.05 ...
 $ Cabin      : chr  "" "C85" "" "C123" ...
 $ Embarked   : chr  "S" "C" "S" "S" ...

Passenger Statistics by Gender

• The Titanic had more men than women – almost two-thirds were men.
  

female   male 
   466    843 

• Percent distribution by gender

female   male 
  35.6   64.4 

Passenger Statistics by Survival

• These data show that fewer passengers survive than did not survive.
  
• However, there are quite a few passengers for whom no survival information is available.
  

Did Not Survive        Survived          Unsure 
            549             342             418 

• Percent distribution by survival

Did Not Survive        Survived          Unsure 
           41.9            26.1            31.9 

Passenger Statistics by Gender and Survival

• About half of the women are known to have survived
  
• While over half of the men are known to have perished
  

Cross-Tabulation, Row Proportions  
Sex * Survived.f  
Data Frame: titanic  

-------- ------------ ----------------- ------------- ------------- ---------------
           Survived.f   Did Not Survive      Survived        Unsure           Total
     Sex                                                                           
  female                     81 (17.4%)   233 (50.0%)   152 (32.6%)    466 (100.0%)
    male                    468 (55.5%)   109 (12.9%)   266 (31.6%)    843 (100.0%)
   Total                    549 (41.9%)   342 (26.1%)   418 (31.9%)   1309 (100.0%)
-------- ------------ ----------------- ------------- ------------- ---------------

Passenger Statistics by Gender and Survival

• Most of the non-survivors were men while most of the survivors were women.
  

Cross-Tabulation, Column Proportions  
Sex * Survived.f  
Data Frame: titanic  

-------- ------------ ----------------- -------------- -------------- ---------------
           Survived.f   Did Not Survive       Survived         Unsure           Total
     Sex                                                                             
  female                    81 ( 14.8%)   233 ( 68.1%)   152 ( 36.4%)    466 ( 35.6%)
    male                   468 ( 85.2%)   109 ( 31.9%)   266 ( 63.6%)    843 ( 64.4%)
   Total                   549 (100.0%)   342 (100.0%)   418 (100.0%)   1309 (100.0%)
-------- ------------ ----------------- -------------- -------------- ---------------

Average Age by Gender

[1] 30

# A tibble: 1 × 2
  Sex    Average_Age
  <chr>        <dbl>
1 female          29

# A tibble: 1 × 2
  Sex   Average_Age
  <chr>       <dbl>
1 male           31

• The average age of passengers on board the Titanic is 30 years old.
  
• The average age of female passengers is 29 years old.
  
• The average age of male passengers is 31 years old.
  

Average Age by Survival

Survivors tended to be younger than those who did not survive.

Average Age by Gender and Survival

Non-surviving females are younger than surviving females. The opposite is true among males.
The youngest group are female non-survivors.

Average Age by Fare Class and Survival

• Passengers booked fares in First, Second, or Third class
  
• First class passengers tended to be older, regardless of survival status
  

Average Age by Fare Class, Gender, and Survival

Among males, those who did not survive tended to be older than survivors, regardless of fare class.
Among females, first class passengers who did not survive were younger than survivors.

Start your analysis using the Embark variable here

Note that passengers embarked at one of three locations.
S: Southampton, England
C: Cherbourg, France
Q: Queenstown, Ireland

   
      C   Q   S Unknown
  1 141   3 177       2
  2  28   7 242       0
  3 101 113 495       0

Distribution of Passengers by Fare Class and Embarked Location Using a Stacked Bar Chart

The stacked bar chart above is to help us analyze and infer the status of the passengers according to their destination and fare class.
According to the stacked bar chart above, we can infer that our fewest amount of passengers are going to Queenstown, Ireland. Along with majority of those passengers are fare class 3. The majority of our passengers were oging to Southampton, England, and the majority of them were fare class 3 with some in fare class 2 and 1. As for those that were headed to Cherbourg, France, majority of them were fare class 1 with a few in fare class 3 and 2.

S: Southampton, England
C: Cherbourg, France
Q: Queenstown, Ireland

Distribution of Passengers by Fare Class and Embarked Location using a Dodged Bar Chart

The dodged bar chart above is helping us gather the same information the stacked bar chart gave us and is reinforcing the results it gave us.
This chart gives us the same results as the stacked, showing that majority of our passengers were going to Southampton and majority of the passengers were in fare class 3.

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