Performing data validation

Now that you've defined the schema, it's time to perform data validation. In this exercise, you'll create validation rules to ensure data quality and check for common issues like duplicates and null values.

The table_schema from the previous exercise is preloaded for you, along with the ts DataFrame and pointblank library.

この演習はコースの一部です

Designing Forecasting Pipelines for Production

コースを見る

演習の手順

Define validation using the right method and passing the ts DataFrame.
Set up validation rules with the table_schema and check for duplicates.
Print the validation report.

実践的なインタラクティブ演習

このサンプルコードを完成させて、この演習に挑戦してみましょう。

# Define the validation
validation = (pb.____(data=____,
tbl_name="US48 Data Validation",
label="Data Refresh",
thresholds=pb.Thresholds(warning=0.2, error=0, critical=0.1))
             
    # Set up the validation rules
    .col_schema_match(schema=____)
    .col_vals_gt(columns="value", value=0)
    .col_vals_in_set(columns="respondent", set = ["US48"])
    .col_vals_in_set(columns="type", set = ["D"])
    .col_vals_not_null(columns=["period", "value"])
    .____()
    .interrogate())

# Print the validation report
print(validation.____())

コードを編集して実行