filldown

Fill empty fields in the data extract using values in the row above.

Introduction

Use the filldown enrichment to fill in the empty fields in a data extract. Select which columns to check for empty values and choose what Adverity should treat as an empty field. Empty fields are populated with values from the fields in the row above.

Creating the enrichment

For more information on creating an enrichment, see Using custom scripts.

Configuring the enrichment

To configure the enrichment, fill in the following fields. Required fields are marked with an asterisk (*).

Fields

Enter the names of the columns to search through for empty values. Leave this field blank to search through the whole of the data extract.

Select a column in one of the following ways:

• Select String and enter the name of the column.

• Select Integer and enter the position of the column in the data extract as an index value. Counting starts at 0. To select the first column, enter 0. To select the second column, enter 1. To select the last column in the data extract, enter -1.

Missing

Enter the missing value for Adverity to search. For example, a value like null or n/a could be treated as a missing value. Leave this field blank to search and fill only the fields that are empty.

Subtable

Enter the name for a subtable that you want to contain the enriched data. The enrichment is applied to the whole data extract, then the enriched data is output into the subtable you have named here.

This subtable is a temporary table, which means it only exists for this custom script. You can apply additional instructions within the same custom script to the subtable. However, the subtable cannot be used in any other custom scripts.

Example

Enrichment configuration

Fields

Campaign

Ad Group

Missing

null

Data table before enrichment

Campaign	Ad Group	Clicks
Brand	media	7
Brand	null	3
Dashboard	media|social	18
null	ecommerce

Data table after enrichment

Campaign	Ad Group	Clicks
Brand	media	7
Brand	media	3
Dashboard	media|social	18
Dashboard	ecommerce