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Click Finish to apply the filter. If no sample or cell will pass the filter criteria, a warning message will appear and the task will not run. 

Configuring a filter

The first drop-down menu allows you to choose to include or exclude based on the specified criteria. 

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If the attribute is categorical, the third drop-down menu includes is and is not as options. A fourth drop-down menu allows you to choose from the levels of the selected attribute (Figure 2). 

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The threshold is set using the text box (Figure 3). The input must be a number; it can be an integer or decimal, positive or negative.

Configuring multiple filters

Using the OR and AND options, you can combine multiple filters. 

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With OR, all statements must be true for the sample to meet the filter criteria.

Filter groups task report

The filter groups task report lists the filter criteria and reports feature distribution statistics for the remaining samples (Figure 4). 

If the input was a count matrix data node, the percentage of samples remaining after the filter is listed and charts are provided to show the breakdown of samples by categorical attributes before and after filtering (Figure 5). 

If the input was a single cell counts data node, a second table displays the number of cells retained from each sample (Figure 6). 

If the input was a classified groups single cell counts data node, the cell count table includes a breakdown by classification and a bar chart is provided to show the number of cells from each classification remaining after filtering (Figure 7). 

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