Linked table (DT) and plotly graph

Idea / use case

For exploration of marker genes for each cluster, a user often has a table containing those genes, with additional data like p-values, fold changes etc. It would be nice, if this table could be shown in the report as well (1), along with a reduced dimension view colored by gene expression (2). Additionally, if a user clicks on a row in the table, the dimension reduction plot is colored according to the selected genes expression.

Example

The table might look like this:

Gene	Cluster	p-value	FDR	logFC	Action
geneA	cluster1	0.001	0.01	2.05	View
geneB	cluster2	0.005	0.02	1.4	View

If the user now clicks on the View-Link, JavaScript is executed that triggers Plotly.update with the corresponding expression data.

Unsolved questions

1. How can expression data be stored? Can it be transmitted via the link? Can it be baked into the plotly and simply switched to visible?

Intermediate goals

1. Extend i2dash to include objects of type DT.
2. Create a new page, that links a DT with a dimension reduction plot.
3. Create wrappers for Seurat and SingleCellExpression objects.