# Correlation analyses

Available in...

* Big Data Platform
* Cloud API Services Platform
* Cloud Big Data Platform
* Cloud Data Fabric
* Cloud Data Management Platform
* Data Fabric
* Data Management Platform
* Data Services Platform
* Qlik Talend Cloud Enterprise Edition
* Qlik Talend Cloud Premium Edition
* Real-Time Big Data Platform

Talend Studio provides the possibility to explore relationships and correlations between two or more columns so that these relationships and correlations give a new interpretation of the data through describing how data values are correlated at different positions.

Information noteRestriction: Column correlation analyses are possible only on database columns. You can not use these analyses on file connections.

It is very important to make the distinction between column correlation analyses and all other types of data quality analyses. Column correlation analyses are usually used to explore relationships and correlations in data and not to provide statistics about the quality of data.

This is why it is not possible to generate reports from column correlation analyses because reports are usually used to determine the improvement or degradation of data.

Several types of column correlation analysis are possible. For more information, see [Creating a numerical correlation analysis](https://help.qlik.com/talend/en-US/studio-user-guide/8.0/creating-numerical-correlation-analysis), [Creating a time correlation analysis](https://help.qlik.com/talend/en-US/studio-user-guide/8.0/creating-time-correlation-analysis) and [Creating a nominal correlation analysis](https://help.qlik.com/talend/en-US/studio-user-guide/8.0/creating-nominal-correlation-analysis).

For more information about the use of data mining types in Talend Studio, see [Data mining types](https://help.qlik.com/talend/en-US/studio-user-guide/8.0/data-mining-types).

### In this section

* [Numerical correlation analyses](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/numerical-correlation-analyses)
* [Time correlation analyses](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/time-correlation-analyses)
* [Nominal correlation analyses](https://help.qlik.com/talend/en-US/studio-user-guide/8.0-R2026-09/nominal-correlation-analyses)