# Batch calculation

Aim

Batch calculation helps you perform calculations in multiple runs, each with a particular combination of track smoothing settings, data profiles and analysis profiles. It is handy when you have large data sets that take hours to analyze. In that case you can start batch calculation at the end of the day, and return the next day to collect the results.

Each analysis run is based on a combination of three profiles:

▪Track Smoothing profile (for smoothing tracks and filtering noise).

▪Data profile (the trials and samples subject to analysis).

▪Analysis profile (the dependent variables and their statistics).

tip When you carry out batch data acquisition, it is also useful to couple this with batch statistics calculations, so that analysis is started automatically after acquisition of the last trial has ended. See Auto-start data analysis.

To run batch calculation

1.Make sure that all Track Smoothing profiles, Data profiles and Analysis profile that you want to use are defined in the Experiment Explorer.

2.Choose Analysis > Results > Statistics & Charts, or in the Experiment Explorer, under Results, click Statistics & Charts.

3.Click the Batch button.

4.In the Batch Calculation window, do one of the following:

▪If you want to carry out batch calculation for all the combinations of Track smoothing profiles, Data profiles and Analysis profiles, click Add all.

▪If you are interested in specific combinations of profiles, select the combination of profiles that you want to use, and click Add. Repeat this step for all the combinations you require.

tip To remove a profile combination, click that combination in the list and then click Delete. To select multiple combinations, click each combination while holding the Ctrl key down.

tip To minimize processing time and disk space occupied by the results, make sure that when you select Add all, the Track smoothing, Data and Analysis profiles in your experiment are those you want to use for analysis. Remove any duplicate or non-interesting profiles.

5.The Batch Calculation window lists the combinations selected for calculation.

6.Click Calculate when you are ready. To retrieve the results for a particular combination of profiles, select this combination from the lists on the toolbar.

7.Export the results. Note: You can export the result for one combination of profiles at a time. See Export the statistics result.

Note

▪Batch statistics calculations create a number of temporary files. For this reason, they may require large disk space, especially when you analyze large amount of data. These files may also make backup files excessively large. Before backing up an experiment, make sure to remove unnecessary files to create a smaller backup file. For more information, see Back up an experiment.