Answer-first summary for fast verification
Answer: The describe()operation does not accept a Column object as an argument — the column name string “sqft” should be specified instead.
The code block contains a typo in the column name ('sgft' instead of 'sqft') and incorrectly passes a Column object to the `describe()` method. The `describe()` method in Spark expects column names as strings, not Column objects. Therefore, the correct approach is to pass the column name as a string, like `storesDF.describe("sqft")`. The options provided focus on the method's requirements rather than the typo, making option E the correct choice as it accurately identifies the issue with passing a Column object to `describe()`.
Author: LeetQuiz Editorial Team
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Identify the error in the following code block intended to return summary statistics for the column sqft in DataFrame storesDF:
Code block:
storesDF.describe(col("sgft"))
storesDF.describe(col("sgft"))
A
The column sqft should be subsetted from DataFrame storesDF prior to computing summary statistics on it alone.
B
The describe() operation does not accept a Column object as an argument outside of a sequence — the sequence Seq(col(“sqft”)) should be specified instead.
C
The describe()operation doesn’t compute summary statistics for a single column — the summary() operation should be used instead.
D
The describe()operation doesn't compute summary statistics for numeric columns — the summary() operation should be used instead.
E
The describe()operation does not accept a Column object as an argument — the column name string “sqft” should be specified instead.
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