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A useful GUI?

3 messages · Frank E Harrell Jr, Peter Dalgaard, Paul Murrell

#
I saw an ad in the July 2001 Amstat News for a complex sample
survey analysis package called Wesvar.  The package has
what appears to be a useful feature called a "Workbook"
by which the user navigates analysis output.  This is a
hierarchical tree in which the user may click on a part
of the analysis (table, regression fit, descriptive stats,
etc.) so as to go directly to that output.  Recent versions
of SAS have something similar.  In SAS the title of a
graphic may be what appears in the navigation tree, and
clicking on that entry will replay the appropriate graph.

Has anyone had experience with such GUIs and would comment
on productivity or documentation benefits?  I wonder
what would be the most platform-independent way to
implement such a feature, e.g., dynamic html, if it is
useful to statisticians.

On a related note, I routinely use postscript files and
Ghostview for generating and debugging graphics.  Has
anyone seen an application like Ghostview that is more
dynamic?  I would like to have a multi-tabbed graphics
window that automatically refreshes a graph when the
postscript file changes and that graph is visable.  Tabs
could be identified by file names or by text used
in a title( ) call.  If postscript were an intrinsic
image type supported by html browers this could probably
be done elegantly with an html generator.
#
Frank E Harrell Jr <fharrell at virginia.edu> writes:
I've tried the SAS stuff (the Analyst application). It's a fairly neat
idea, but you do need to put in a substantial effort to relabel the
stuff and delete any "junk" output, or find yourself with a bunch of
litle icons all having similar generic names like "Probability plot" or
"ANOVA output" (I forget the exact names, but you get the picture).
There was a strange division between SAS programming and Analyst in
that *only* code executed from Analyst would go into the project tree,
nicely incorporating the SAS code that Analyst had written for you,
but excuting SAS code directly would go to a *different* tree, which
did *not* include the code that was executed.

The version I tried (SAS 8.0) was also bug-ridden beyond belief.
Suddenly, the system would get itself into a state where the tree
could no longer be saved, detracting rather badly from the usefulness.
They might have fixed that in the meantime though.

The newer Enterprise Guide stuff is reportedly neater, but we never
succeeded in getting it to run on any of our PC SAS installations
(seemingly, it was not prepared for our particular network
configuration).

It's the sort of thing that it might be easy to code in Tcl/Tk, and
which I do have some plans of returning to .. in the fullness of time
. when other obligations allow .. etc....
#
Hi
SPSS has a similar thing for navigating its output.  I found it extremely
useful for navigation
 -- I think its a great way to present the hierarchical nature of the output
as a complement to the very "flat" view that you get from the output
itself -- but it was also useful for *selecting* bits of the output for
copying or deletion.

I think this would also be a nice way to navigate the hierarchical structure
of graphical output (for selecting/editing elements of a graph).

Paul


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