Informatics Practices
Assertion (A): We can add a new column in an existing DataFrame.
Reason (R): DataFrames are size mutable.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, and R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true, and R is the correct explanation of A.
Explanation
We can add a new column to an existing DataFrame using the .at or .loc methods. A DataFrame is a two-dimensional data structure that is size-mutable. This means that we can add or drop elements in an existing DataFrame object without needing to create a new DataFrame internally.
Related Questions
Which Matplotlib plot is best suited to represent changes in data over time?
- Bar plot
- Histogram
- Line plot
- Histogram & Bar plot
Which type of network covers a small geographical area like a single office, building, or school campus?
- PAN
- MAN
- LAN
- WAN
Assertion (A): In SQL, INSERT INTO is a Data Definition Language (DDL) Command.
Reason (R): DDL commands are used to create, modify, or remove database structures, such as tables.
- Both A and R are true, and R is the correct explanation of A.
- Both A and R are true, and R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
What is a Series in Python Pandas? Also, give a suitable example to support your answer.