A data analyst added some missing data to a list of observations, since only a small amount of the data was absent. Which of the following actions did the data analyst perform?

The correct answer is C. Append. Appending refers to adding new records (rows) to an existing dataset. In this case, the analyst identified missing observations and added them to the list - which is an append operation. Concatenation joins fields or strings together (horizontal combination). Parsing breaks…

Data Analysis

Question

Options

AConcatenate
BParse
CAppend
DMerge

How the community answered

(32 responses)

A
3% (1)
C
94% (30)
D
3% (1)

Explanation

Appending refers to adding new records (rows) to an existing dataset. In this case, the analyst identified missing observations and added them to the list - which is an append operation. Concatenation joins fields or strings together (horizontal combination). Parsing breaks down data into components. Merging combines two datasets using a common key. Since the analyst is adding missing rows/observations to an existing list, the correct term is append.

Topics

#Data Cleaning#Missing Data#Data Manipulation#Append

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