[IPython-dev] Widget idea: Global Parameters

Antonino Ingargiola tritemio at gmail.com
Sat Apr 5 14:16:30 EDT 2014

I second the idea. I think it is a common pattern (at lest for me) to
create a notebook to perform an analysis and then to process a series of
datasets for comparison.

Right now I create several notebook copies manually, but as Jake says, it
quickly becomes tricky once you want to tweak the analysis (either you
modify N notebooks or re-create the N copies).

Some sort of parametrization of the notebooks would be useful, and using
the widget infrastructure seems a sensible idea.


On Fri, Apr 4, 2014 at 9:01 AM, Jacob Biesinger <jake.biesinger at gmail.com>wrote:

> Hi!
> I don't follow this list very closely but had an idea I thought worth
> sharing.  I'm not sure if this is the right list to share to but here goes:
> I find myself creating notebooks as reports on different datasets and
> parameters.  There are a few global variables listed at the top and after
> the code munging phase is complete, I make duplicates of the notebook, only
> changing the global variables and rerunning all the cells.  This quickly
> becomes unmanageable.  Additional notebooks are hard to maintain and tweak
> whereas maintaining a single notebook means I have to rerun the report for
> every tweak. I also can't compare reports without copying notebooks.
> What if we had a way to specify "report parameters", global variables you
> can modify using a widget interface (dropdown, slider, input box, etc but
> tied to multiple cells or possibly the whole notebook) and a caching
> mechanism to store notebook contents for each combination of report
> parameters? I'm imagining quickly switching the dataset for a series of
> graphs I'm looking at and having the graphs already cached for the ones
> I've looked at, or having the report run for any new combinations.
> I suppose I could open multiple tabs on the same report to simulate some
> of this though it seems the autosaves would conflict.
> Thanks for listening!
> --
> Jake Biesinger
> Graduate Student
> Xie Lab, UC Irvine
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