The new intake GUI - built with panel

It is often useful to explore catalog data using a Graphical User Interface. The previous iteration of the intake GUI was built in ipywidgets - which limited you to use from within the notebook. The new version is implemented in panel which means that in addition to rendering in the notebook - it also can easily be served and deployed as a tornado application.

NOTE: This work depends on the latest released versions of panel and bokeh

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import intake

The intake GUI is composed of various sub-panels that can be opened and closed using control buttons. Try clicking the + button to get started. With that pane open, navigate to a catalog of interest and click the "Add Catalog" button.

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The "Add Catalog" mechanism is also exposed through the API:

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Once you have selected from the "Sources" pane, that selection can be found at intake.gui.sources:

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This consists of a list of regular intake data source entries. Let's look at the first one:

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source = intake.gui.sources[0]

You can also look at the GUI just for that source:

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OR you can get just one sub-panel from the gui and work with that directly:

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You can also initialize a gui straight from a catalog to jump directly into the part of the gui that deals with selecting and viewing entries.

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cat = intake.open_catalog('./us_crime/us_crime.yaml')

The cat.gui also exposes the list of selected sources on the sources attribute.

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us_crime = cat.gui.sources[0]

This is just a source entry that can be loaded, read, and plotted.

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us_crime.plot.bivariate('Burglary rate', 'Property crime rate', legend=False, width=500, height=400) * \
us_crime.plot.scatter(  'Burglary rate', 'Property crime rate', color='black', size=15, legend=False) +\
us_crime.plot.table(['Burglary rate', 'Property crime rate'], width=350, height=350)

Future Work

There are many plans for how this GUI could be expanded. In the near future, we anticipate adding a mechanism for inputting user parameters, adding some basic custom plotting, and allowing the editing and saving of catalogs. See GH#225 for a full discussion of the plan.