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Sample Selector

Sample Selector is a tool for creating and editing samples, or groups of data you compare across—they're not "samples" in the statistical sense, but more like filters.

By default, a single sample exists: "All Data". With the Sample Selector, you can create new samples to organize your data.

You can use samples to:

A sample is composed of one or more filters, specific conditions that narrow down your sample.

Creating a sample

The general process for creating a sample is to:

The effect of multiple filters

DataShop interprets each filter after the first as an additional restriction on the data that is included in the sample. This is also known as a logical "AND". You can see the results of multiple filters in the sample preview as soon as all filters are "saved".

Help

Cog Tutor 2010 (private)

Datasets Terms of Use

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Steve Ritter
Data Provider
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Datasets
Dataset Area/ Subject Dates Data Last Modified Transactions KC Models Status
Math/ Algebra Aug 27, 2010 - Feb 17, 2011 May 3, 2013 38,227 5 complete
Math/ Algebra Oct 8, 2010 - Feb 23, 2011 May 8, 2013 130,824 5 complete