
23. Transformación de datos
Authored by Luis Villalobos
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Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué hace la función merge() en pandas?
Ordena los datos de un DataFrame por valores en una columna
Answer explanation
merge() combina DataFrames según columnas comunes, similar a un join en SQL.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para combinar DataFrames por sus índices?
dropna()
Answer explanation
concat() permite combinar DataFrames en base a sus índices o columnas.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el propósito de la función pivot()?
Crear nuevas columnas a partir de los valores de una columna
Answer explanation
pivot() reorganiza los datos, convirtiendo las columnas en filas o viceversa.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué hace melt() en pandas?
Answer explanation
melt() convierte las columnas de un DataFrame en filas, cambiando su estructura.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué hace combine_first() con dos DataFrames?
Combina la primera columna de cada DataFrame
Answer explanation
combine_first() reemplaza los valores nulos de un DataFrame con los valores del otro.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sucede cuando usamos transpose() en un DataFrame?
Answer explanation
transpose() intercambia las filas y columnas de un DataFrame.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se llama el proceso de convertir un DataFrame de formato "ancho" a "largo"?
merge()
Answer explanation
El proceso de convertir datos de formato "ancho" a "largo" se hace con melt().
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