> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/microarray/general/microarray-general-reference_material-list/000009768.md).

# When to run Reproducibility and Heritability reports with or without error calculation in GenomeStudio

Running the Reproducibility and Heritability reports in GenomeStudio with or without error calculation helps users choose the appropriate option based on the state of the GenomeStudio project to ensure accurate and efficient reporting.

There are two options available when generating Reproducibility and Heritability Report in GenomeStudio v2.0 (Figure 1):

* with Calculating Errors
* without Calculating Errors

  ![](/files/FA5BGWybieVdIsoX6nOx)

**Figure 1.** GenomeStudio Analysis tab showing the 'Create Reproducibility and Heritability Report' with the two options.

Selecting either option depends on the state of the GenomeStudio project:

1. If "with Calculating Errors" is selected, GenomeStudio recalculates reproducibility and heritability values for all SNPs before generating the report. The report will be based on the newly calculated values. This process recalculates and updates the error values which may take longer to complete.

Select "with Calculating errors" if:

* It is the first time running the Report
* User wants to re-run the calculations (for example, after changes to clustering) to ensure the report reflects the most up-to-date and accurate data
* User is not sure whether error calculations have already been performed

2. If "without Calculating Errors" is selected, the report uses existing data in the Samples Table and SNP statistics and generates results without recalculating the values.

Select "without Calculating errors" if:

* User has already run the report error calculation and is confident that the project is up to date
* No changes have been made since the last report and user wants to save time.
* The data is already stored in the project and no updates are required, as the report will produce the same results as running it "with Calculating Errors."

**Additional resources:**

* [GenomeStudio Software 2.0 User Guides](https://support.illumina.com/downloads/genomestudio-2-0-user-guides.html)
* [Advanced Analysis Tools in GenomeStudio - Support Webinar](/microarray/general/microarray-general-reference_material-list/000008071.md)

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #9768), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000008071%20-%20Microarray%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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