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Field Filters and Rules

You can also apply filters or rules to the fields in your dataset. In order to do so, you will need to add a field to the Data Filters placeholder in the lower section of the data editor. Then, select a field from the dropdown menu to access the Data Filter window.

Adding data filter fields list

Filter Empty Values​

Reveal provides the ability to filter rows in the dataset that have null or empty values on a specific column by enabling the filter empty values configuration setting on a specific column.

Filter Empty Values in the list of filter types

Select Values​

This type of filter supports the definition of the set of values to display for a specific field. To enable it, drag and drop a field to the Data Filters placeholder.

Select Values option in the list of filter types

In the Field Settings dialog, you will see the option to Select Values. This displays the list of possible values for a column, and allows you to select only the items you want to remain in the dataset. Rows with values excluded by the filter aren't displayed in the visualization.

Filter by Rule​

The Filter by Rule option enables the definition of more complex rules. The available rule options change depending on the field type.

Rules for Date Fields​

Date fields include rules designed to support time-based scenarios, changing the data range and filtering the information displayed in the visualization.

  • Custom Date Range

  • Last Week, Month, or Year

  • Month to Date

  • Next Month, Quarter, or Year

  • Previous Month, Quarter, or Year

  • Quarter to Date

  • This Month, Quarter, or Year

  • Today

  • Year to Date

  • Yesterday

By default, when Filter by Rule is enabled on a numeric field, it is set to "None".

Rules for Numeric Fields​

Numeric fields (such as integers, decimals, and currencies) support the following rules:

  • Above Average

  • Above Equals Value

  • Above Value

  • Below Average

  • Below Equals Value

  • Below Value

  • Bottom Items

  • Bottom Percent

  • Top Items

  • Top Percent

By default, when Filter by Rule is enabled on a numeric field, it is set to "None".

Rules for String Fields​

Text columns support the following type of rules:

  • Contains

  • Ends With

  • Is Equal

  • Not Contains

  • Not Equals

  • Starts With

Similarly, these rules also take one parameter: the value of the 'starts with', or 'equals' that the rule is going to use to evaluate, and is entered in a text box in the same position.

Filtering Fields in Values​

You can filter your Values by aggreggation. Then this value will appear with the same aggregation in the list of fields in the Data Filters placeholder.

Data Filters Filtering in the Data Editor