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Adding a Sample Attribute to the Heat Map

• Select the Rows tab 
• Select Tissue from the New Annotation drop-down menu
• Select Apply

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Changing Heat Map Colors

The minimum, maximum, and midpoint colors of the heart map intensity plot can be customized. 

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• Select the Hierarchical Clustering tab
• Select File from the main toolbar
• Select Save Image As... from the drop-down menu
• Select a destination and name for the file
• Select PNG or your preferred image type from the pull-down menu
• Select Save