Filtering data against patterns - Cloud - 7.3

Talend Studio User Guide

Version
Cloud
7.3
Language
English
Product
Talend Big Data
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Module
Talend Studio
Content
Design and Development
Last publication date
2024-02-13
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After analyzing a set of columns against a group of patterns and having the results of the rows that match or do not match "all" the patterns, you can filter the valid/invalid data according to the used patterns.

Before you begin

An analysis of a set of columns is open in the analysis editor in the Profiling perspective of Talend Studio.

You have used the Java engine to execute the analysis.

Procedure

  1. In the analysis editor, click the Analysis Results tab at the bottom of the editor to open the detailed result view.
  2. Click Data to open the corresponding view.
    A table lists the actual analyzed data in the analyzed columns.
  3. Click Filter Data on top of the table.
    A dialog box is displayed listing all the patterns used in the column set analysis.
  4. Select the check box(es) of the pattern(s) according to which you want to filter data.
  5. Select a display option as the following:
    Select To..
    All data show all analyzed data.
    matches show only the data that matches the selected pattern.
    non-matches show the data that does not match the selected pattern(s).
  6. Click Finish to close the dialog box.

Results

In this example, data is filtered against the Email Address pattern, and only the data that does not match is displayed.

All email addresses that do not match the selected pattern appear in red. Any data row that has a missing value appear with a red background.

The Previous and Next buttons under the table helps you to navigate back and forth through pages.

Numbered buttons are displayed under the table to access pages directly:

  • when you open the Data view for the first time after running the analysis,
  • if you did not select a pattern in the Filter Data dialog box, or
  • if you selected All data as the display option in the Filter Data dialog box.