CSP Study Guide

On the pandas cheat sheet, row‑selection operations appear under which section?Write the name of the section below

Subset Observations: Rows

Quantitative Data

Data measured numerically (discrete (whole number) & continuous data (decimals))

Qualitative Data

Data describing descriptive categories

Exactly equal to

==

Not Equal To

!=

Strictly less than

<

Strictly Greater Than

>

Less than or equal

<=

Greater than or equal

>=

Exact rows that meet logical criteria

df[df.Length > 7]

Remove duplicate rows (only considers columns)

df.drop_duplicates()

df.sample(frac=0.5)

Randomly select fraction of rows.

Randomly select n rows

df.sample(n=10)

What does it mean to filter a data frame?

When filtering a DataFrame, it selects a subset of rows or columns that is desired to match a certain rule or request

Why must each conditional be enclosed in parentheses when combining them?

Each conditional must be enclosed in parentheses when combining them because like math PEMDAS, programming languages have operator precedence and syntax clarity.