Re: [Gnumed-bugs] Error attempting Gnuplot on Report generator

[Karsten Hilbert]

On Tue, May 10, 2011 at 06:46:32AM -0700, Jim Busser wrote:

> > So.. I should not bother with py26-gnuplot?
> 
> Actually, I installed it and can now reach the prompts to offer the x and y 
> axes.

Good.

> I take it x and y cannot be anything except numeric?

Pretty much, which includes anything you can use SQL for to
make it look like numeric, such as

20090327
20090330
20090411
20110501

etc.

> I can't think of a query which would result in two numeric
> values which could be passed to gnuplot from the report
> generator.

We are passing in *series* not single values. The series
come from the column you chose for the x- and y-axis.

> How to show, in base GNUmed, the usefulness of the
> Visualize button? Would there be a way to pass a set of
> dates as the x axis and a numeric value as the y?

There would, if you tell PostgreSQL to format the dates like
shown above.

Karsten
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