Removing whitespace
With the ratings now stored as integers, you notice another issue in the dataset: some values in the detail column have leading whitespace. This inconsistency could cause problems when grouping products by their detail type - " eau de toilette" and "eau de toilette" would be treated as different categories.
本练习是课程的一部分
Data Transformation with Polars
练习说明
- Remove leading whitespace from the
detailcolumn by calling the.strip_chars_start()method.
交互式实操练习
通过完成这段示例代码来试试这个练习。
# Remove leading whitespace from the detail column
reviews.____(
pl.col("detail").____.____()
)