Nothing
setClass("ExpressionLevel", representation(center="numeric",width="numeric", "VIRTUAL"))#, where=where
setClass("LowExpressionLevel", contains="ExpressionLevel")
setClass("MediumExpressionLevel", contains="ExpressionLevel")
setClass("HighExpressionLevel", contains="ExpressionLevel")
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.