Take a Sample

How To... > Create Simulations > Sampling Simulations > Take a Sample

Sampling in Fathom means to choose some number of cases randomly from a collection and put them into a new collection. The original collection is not changed. The sample collection is a kind of derived collection. There are two ways to sample cases from a collection: Drag and drop or use a menu command.

Drag and Drop

1.	Make a new collection, for example, by dragging one off the shelf.

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2.	Drag the name of the source collection into the new collection.

The new collection becomes a sample collection.

Using a Menu

1.	Select the collection.

2.	Choose Collection \| Sample Cases.

A sample collection is created and filled.

You can control the sampling process in the Sample panel of its inspector (see Sample Panel).

If you Define a Measure, you can collect measures to build a sampling distribution of your measure(s) (see Collect Measures and Other Results).