Exporting integration analyses

• Integration by cells
• Integration by regions
• Integration by regions by cells
• Integration by transects
• Integration analyses from scenes
• Integration by regions
• See also

Integration by cells

To perform an integration export for the cells in an Sv echogram.

1. Choose the Analysis variables to export, the Output format, and configure the empty cell handling on the Export page of the EV File Properties dialog box.

2. Open (or click to bring into focus) the Sv echogram for the export.
1. Configure the cells by specifying the Show time/distance grid and Show depth/range/line-referenced on the Grid page.
2. Configure the settings on the Analysis page.
3. On the Echogram menu, choose Export, Analysis by Cells and click Integration...

The export is constrained to cells overlapping with any transects in an assigned transect group. Refer to Transects and export analyses for more details.

Integration by regions

To perform an integration export for the analysis regions in an Sv echogram.

1. Choose the Analysis variables to export and the Output format on the Export page of the EV File Properties dialog box.

2. Open (or click to bring into focus) the Sv echogram for the export.
1. Define the regions for the export and set the region type to analysis (use the Region Browser dialog box).
2. Ensure the region classes for your export are visible on the Regions page.
3. Configure the settings on the Analysis page.
3. On the Echogram menu, choose Export, Analysis by Regions and click Integration...
4. If the Export by Region - Select Classes dialog box displays, choose the region class(es) to include in the export, then click Export...

The export is constrained to regions overlapping with any transects in an assigned transect group. Refer to Transects and export analyses for more details.

See Exporting integrations from scenes for integrating multibeam data by regions.

Integration by cells is available for a selected region via the right-click menu Export region, Integration by Cells.

Overlapping regions are treated independently.

Integration by regions by cells

To perform an integration export for the cells of the analysis regions in an Sv echogram.

1. Choose the Analysis variables to export, the Output format, and configure the empty cell handling on the Export page of the EV File Properties dialog box.

2. Open (or click to bring into focus) the Sv echogram for the export.
1. Define the regions for the export and set the region type to analysis (use the Region Browser dialog box).
2. Ensure the region classes for your export are visible on the Regions page.
3. Configure the cells by specifying the Show time/distance grid and Show depth/range/line-referenced on the Grid page.
4. Configure the settings on the Analysis page.
3. On the Echogram menu, choose Export, Analysis by Regions by Cells and click Integration...
4. If the Export Integrated Regions By Cells - Select Classes dialog box displays, choose the region class(es) to include in the export, then click Export...

The export is constrained to regions and cells overlapping with any transects in an assigned transect group. Refer to Transects and export analyses for more details.

Overlapping regions are treated independently.

The analysis variables PRC_NASC and PRC_ABC will be calculated for each region-cell intersection in addition to other variables. If regions do not overlap then these variables will give the ABC and NASC for the cell due to the samples in the region-cell intersection. These variables are additive and if a cell is subdivided exactly into a number of regions then the sum of the PRC_NASC (or PRC_ABC) will be equal to the cell NASC (or cell ABC). Alternatively the NASC (or ABC) for those parts of the cell not in regions can be determined by subtracting the sum of PRC_NASC (or PRC_ABC) over all regions-cell intersections in the cell from the NASC (or ABC) for the entire cell. These variables can thus be used to apportion backscattered energy between species or species assemblages using Region classes.

When integrating regions-by-cells, the NASC, ABC, Height_mean and Thickness_mean are not output even if selected on the Export page of the EV File Properties dialog box as they are not correct for region-cell intersections where bad data or bottom regions exist in the cell and are disjointed. Usually, PRC_NASC or PRC_ABC rather than NASC (or ABC) is utilized for these regions (and compared to NASC (or ABC) for the entire cell) so this is unlikely to be a problem.

Integration by transects

To perform an integration export for the transect segments (in an assigned transect group) in an Sv echogram.

1. Choose the Analysis variables to export and the Output format on the Export page of the EV File Properties dialog box.

2. Open (or click to bring into focus) the Sv echogram for the export.
1. Configure the settings on the Analysis page.
3. Define transects in the assigned transect group for the echogram.
4. On the Echogram menu, choose Export, Analysis by Transects and click Integration...

Integration analyses from scenes

This applies to multibeam data.

Before exporting integration analyses from a scene you must associate an Sv variable with the scene and choose an algorithm. Visit the Analysis page of the Scene properties dialog box to define these settings. The default setting is None which will result in an export not containing any integration results. You can export integrations from scenes by regions only.

File format *.csv

Integration by regions

You can export 3D region integration variables for one or more 3D region(s) that are displayed in the scene you are currently viewing. The data are written to a .csv file.

To export an integration analysis for 3D region(s) that are displayed in the scene you are currently viewing:

1. On the Scene menu, point to Export, and then click Analysis by Regions.

You can display the integration results for a 3D region without first exporting them using the 3D Region integration results dialog box.

See also

About analysis variables
About interval and layer values in export files
Cell Integration dialog box
Exporting cell analyses
Exporting regions
Integrating cells
Integrating regions
Notes about schools detection: Additional possible calculations
Output Empty Cells
Special Export Values