Hello from Getting Started¶

Flow diagram

``` mermaid
flowchart TD;
    id1["Data class"]
    id2["Fetching"]
    id3["Pandas objects"]
    id4["Data instances"]
    id5["Alignment"]
    id6["Merging"]
    id7["Data instance"]
    id8["Updating"]
    id9["Querying"]
    id10["Resampling"]
    id11["Transforming"]

    id1 --> id2;
    id2 --> id5;
    id3 --> id5;
    id4 --> id5;
    id5 --> id6;
    id6 -->|"creates new"| id7;
    id7 --> id8;
    id7 --> id10;
    id10 -->|"creates new"| id7;
    id7 --> id11;
    id11 -->|"creates new"| id7;
    id8 --> id5;
    id7 --> id9;
```

flowchart TD;
    id1["Data class"]
    id2["Fetching"]
    id3["Pandas objects"]
    id4["Data instances"]
    id5["Alignment"]
    id6["Merging"]
    id7["Data instance"]
    id8["Updating"]
    id9["Querying"]
    id10["Resampling"]
    id11["Transforming"]

    id1 --> id2;
    id2 --> id5;
    id3 --> id5;
    id4 --> id5;
    id5 --> id6;
    id6 -->|"creates new"| id7;
    id7 --> id8;
    id7 --> id10;
    id10 -->|"creates new"| id7;
    id7 --> id11;
    id11 -->|"creates new"| id7;
    id8 --> id5;
    id7 --> id9;

classDiagram
  Person <|-- Student
  Person <|-- Professor
  Person : +String name
  Person : +String phoneNumber
  Person : +String emailAddress
  Person: +purchaseParkingPass()
  Address "1" <-- "0..1" Person:lives at
  class Student{
    +int studentNumber
    +int averageMark
    +isEligibleToEnrol()
    +getSeminarsTaken()
  }
  class Professor{
    +int salary
  }
  class Address{
    +String street
    +String city
    +String state
    +int postalCode
    +String country
    -validate()
    +outputAsLabel()  
  }

Using entity-relationship diagrams¶

An [entity-relationship diagram] is composed of entity types and specifies relationships that exist between entities. It describes inter-related things in a specific domain of knowledge:

Entity-relationship diagram

``` mermaid
erDiagram
  CUSTOMER ||--o{ ORDER : places
  ORDER ||--|{ LINE-ITEM : contains
  CUSTOMER }|..|{ DELIVERY-ADDRESS : uses
```

erDiagram
  CUSTOMER ||--o{ ORDER : places
  ORDER ||--|{ LINE-ITEM : contains
  CUSTOMER }|..|{ DELIVERY-ADDRESS : uses

Last update: November 5, 2022