Descriptive statistics

Descriptive statistics task can be invoked on matrix data node e.g. Gene Counts, Normalized Counts data node in bulk RNA seq analysis pipeline or Single Cell counts Data node etc. It calculates measures of central tendency and variability on observations or features of the matrix data.

Running Descriptive statistics

• Click on a counts data node

• Choose Descriptive Statistics in Statistics section of the toolbox (Figure 1)

This will invoke the dialog configuration dialog; use it to specify which calculation(s) will be performed on cells (or samples for a bulk analysis data node) or features (Figure 2).

The available statistics are listed on the left panel, suppose "x1, x2, ..., xn"represent an array of numbers

• Coefficient of variation (CV): s represent the standard deviation

• Geometric mean:

• Max:

Left click to select measurement and drag to move to the right panel one at a time, or when you mouse over on a measurement, click on the green plus button to move to the right panel. When Sample (Cell) is select, the calculation will be performed on all the features in the input matrix for each sample (or cell). When Feature is selected, the calculation will be performed across all the samples (cells) in the input matrix for each feature.

In addition, when Feature is selected, there is an extra Group by option (Figure 3)

From the drop-down list, choose a categorical attribute to calculate the descriptive statistics on all the subgroups for each feature.

The output of the task is a matrix: Cell stats (result of Calculate for Cells) or Feature stats (result of Calculate for Features) (Figure 4). The results can be visualized in the Data Viewer.

Additional Assistance

If you need additional assistance, please visit to submit a help ticket or find phone numbers for regional support.